Consider extraneous, "Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign", and synonyms like superfluous ("in excess of what is required or sufficient") or pleonastic ("Using an excessive number of words"). Other synonyms of superfluous include excessive, extra, supernumerary, surplus, unnecessary, extravagant, some of which apply.

Answer from James Waldby - jwpat7 on Stack Exchange
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Merriam-Webster
merriam-webster.com › thesaurus › useless
USELESS Synonyms: 108 Similar and Opposite Words | Merriam-Webster Thesaurus
3 weeks ago - Synonyms for USELESS: impractical, unusable, unsuitable, unworkable, impracticable, unserviceable, inoperable, unavailable; Antonyms of USELESS: useful, practical, feasible, usable, functional, applicable, operational, workable
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Thesaurus.com
thesaurus.com › browse › useless
USELESS Synonyms & Antonyms - 118 words | Thesaurus.com
Find 118 different ways to say USELESS, along with antonyms, related words, and example sentences at Thesaurus.com.
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Collins Dictionary
collinsdictionary.com › us › dictionary › english-thesaurus › useless
Synonyms of USELESS | Collins American English Thesaurus
Synonyms · inept · hopeless · incompetent · ineffectual · no good · useless · 1 (adjective) in the sense of worthless · Definition · ineffectual, weak, or stupid · He realised that their money was useless in this country.
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Cambridge Dictionary
dictionary.cambridge.org › us › thesaurus › useless
USELESS - 67 Synonyms and Antonyms - Cambridge English
formal · He made an ineffectual attempt to regain his throne. inefficient · Traditional irrigation systems are inefficient because they waste a third of the water they spray on fields. impractical · Why is she wearing such impractical high-heeled shoes? useful · The website has a lot of useful information. Go to the thesaurus article about these synonyms and antonyms of useless.
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WordHippo
wordhippo.com › what-is › another-word-for › useless.html
What is another word for useless? | Useless Synonyms - WordHippo Thesaurus
Synonyms for useless include ineffectual, impractical, futile, hopeless, ineffective, pointless, inefficacious, unproductive, worthless and inutile. Find more similar words at wordhippo.com!
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Merriam-Webster
merriam-webster.com › dictionary › useless
USELESS Definition & Meaning - Merriam-Webster
4 days ago - Synonyms of useless · Simplify · : having or being of no use: a · : ineffectual · a useless attempt · b · : not doing or not able to do what is needed · a dull, useless knife · An antibiotic is useless in treating this disease. uselessly ...
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Quora
quora.com › What-are-some-good-synonyms-for-useless
What are some good synonyms for 'useless'? - Quora
Answer (1 of 3): Allowing procurement to control what other people are allowed to buy when there is a clear conflict of interest. Not only having professional relationship with me. By allowing phygial: the divide of physical and digital world. Sourcing or selling me a raw material. The risk is t...
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Thesaurus.com
thesaurus.com › browse › of-no-use
OF NO USE Synonyms & Antonyms - 58 words | Thesaurus.com
useless · Synonyms · STRONGEST · counterproductive fruitless futile hopeless idle impractical incompetent ineffective ineffectual inoperative meaningless no good pointless stupid unproductive unworkable worthless ·
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Power Thesaurus
powerthesaurus.org › useless › synonyms
USELESS Synonyms: 2 038 Similar Words & Phrases
AboutPRO MembershipExamples of SynonymsTermsPrivacy & Cookie Policy · Lists · Parts of speech · Tags · worthless · adj.#insignificant · futile · adj.#hopeless · pointless · adj.#insignificant · ineffective · adj.#inadequate · ineffectual ...
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Appewa
blog.appewa.com › dictionaries › synonyms-antonyms › useless
Useless - Synonyms, Antonyms and Etymology | EWA Dictionary
"Go on the Useless Presents."However, you did see her, and that is useless now.So everything I have done is useless.
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Merriam-Webster
merriam-webster.com › thesaurus › unnecessary
UNNECESSARY Synonyms: 30 Similar and Opposite Words | Merriam-Webster Thesaurus
2 weeks ago - Synonyms for UNNECESSARY: extra, optional, needless, irrelevant, nonessential, unwarranted, redundant, dispensable; Antonyms of UNNECESSARY: necessary, essential, important, required, needed, crucial, vital, needful
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Collins Dictionary
collinsdictionary.com › us › dictionary › english › useless
USELESS definition in American English | Collins English Dictionary
He realized that their money was useless in this country. Synonyms: worthless, of no use, valueless, pants [slang] More Synonyms of useless
Published   March 26, 2018
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Thesaurus.com
thesaurus.com › browse › uselessness
USELESSNESS Synonyms & Antonyms - 29 words | Thesaurus.com
Find 29 different ways to say USELESSNESS, along with antonyms, related words, and example sentences at Thesaurus.com.
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WordReference
wordreference.com › dictionaries › useless
useless - WordReference.com English Thesaurus
useless - WordReference thesaurus: synonyms, discussion and more. All Free.
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Collins Dictionary
collinsdictionary.com › us › dictionary › english-thesaurus › pointless
Synonyms of POINTLESS | Collins American English Thesaurus
Synonyms for POINTLESS: senseless, absurd, aimless, fruitless, futile, inane, irrelevant, meaningless, silly, stupid, …
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Cambridge Dictionary
dictionary.cambridge.org › us › thesaurus › worthless
WORTHLESS - 47 Synonyms and Antonyms - Cambridge English
formal · He made an ineffectual attempt to regain his throne. inefficient · Traditional irrigation systems are inefficient because they waste a third of the water they spray on fields. impractical · Why is she wearing such impractical high-heeled shoes? useful · The website has a lot of useful information. Go to the thesaurus article about these synonyms and antonyms of worthless. Learn more · If someone or something is useless, they do not help you in any way.
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Thesaurus.com
thesaurus.com › browse › ineffective
INEFFECTIVE Synonyms & Antonyms - 90 words | Thesaurus.com
Words related to ineffective are not direct synonyms, but are associated with the word ineffective. Browse related words to learn more about word associations. abortive disappointing epicene feckless fruitless futile impotent incapable ineffectual inefficacious inefficient inutile lame lamest more ineffectual most ineffectual no-account no-good null otiose otiose pale pointless powerless spineless unavailing unfit unfit unproductive unsuccessful unusable unworkmanlike useless void wan waterish weak weaker weakest wishy-washy worthless
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Thesaurus.com
thesaurus.com › browse › worthless
WORTHLESS Synonyms & Antonyms - 111 words | Thesaurus.com
abject abortive base basest bootless cheap cheaper cheapest cheesy contemptible cowardly crappier crappy crummy despicable empty feckless futile good-for-nothing hollow impotent inane inconsequential inconsequential/inconsiderable ineffective ineffective/ineffectual inefficacious inessential inutile lightweight loafing low meaningless measly miserable more inconsequential more inconsequential more inconsiderable more ineffective more ineffective more ineffectual most inconsequential most inconsequential most inconsiderable most ineffective most ineffective most ineffectual naught naughty ne'er-do-well nugatory null pathetic piddling piddly pitiable pitiful pointless poor poor poxy puny purposeless ruthful shuck sorry trivial two-bit unavailing unessential unimportant unnecessary unneeded unproductive unprofitable unrequired unusable useless vain vicious vile vilest void wicked wretched
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Thesaurus.com
thesaurus.com › browse › meaningless
MEANINGLESS Synonyms & Antonyms - 71 words | Thesaurus.com
absurd empty futile hollow inconsequential insignificant pointless senseless trivial unimportant useless vague worthless