Yes, there are indeed different kind of semantically meaningless or anomalous sentences, and those different types can be distinguished in psycholinguistical experiments, e.g., by using the EEG signals N400 and P600.

Answer from Sir Cornflakes on Stack Exchange
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Merriam-Webster
merriam-webster.com › dictionary › meaningless
MEANINGLESS Definition & Meaning - Merriam-Webster
1 week ago - The meaning of MEANINGLESS is having no meaning; especially : lacking any significance. How to use meaningless in a sentence.
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Wikipedia
en.wikipedia.org › wiki › Colorless_green_ideas_sleep_furiously
Colorless green ideas sleep furiously - Wikipedia
2 weeks ago - Other arguably "meaningless" utterances are ones that make sense, are grammatical, but have no reference to the present state of the world, such as Russell's "The present King of France is bald" (France does not presently have a king) from "On Denoting" (also see definite description). Another approach is to create a syntactically-well-formed, easily parsable sentence using nonsense words; a famous such example is "The gostak distims the doshes".
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Sentence Dictionary
sentencedict.com › meaningless.html
Meaningless in a sentence (esp. good sentence like quote, proverb...)
205+5 sentence examples: 1. Life seemed on a sudden empty and meaningless. 2. The committee brushed off his enquiries with meaningless promises. 3. He said a few meaningless words to his hostess and looked around the room. 4. My life is meaningless.
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Wisdom Library
wisdomlib.org › concept › meaningless-sentence
Meaningless sentence: Significance and symbolism
October 18, 2024 - In Hinduism, a Meaningless sentence denotes statements that do not hold significance or relevance within a specific context, suggesting a disconnect from the deeper meanings or teachings inherent in spiritual discourse.
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Collins Dictionary
collinsdictionary.com › dictionary › english › meaningless
MEANINGLESS definition and meaning | Collins English Dictionary
If something that someone says or writes is meaningless, it has no meaning, or appears to have no meaning. The sentence 'kicked the ball the man' is meaningless.
Published   February 9, 2026
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Stack Exchange
english.stackexchange.com › questions › 285538 › is-there-a-group-called-meaningless-sentences
grammar - Is there a group called 'meaningless sentences'? - English Language & Usage Stack Exchange
So, in the examples, "How are you?" and "I'm fine." might be called semantic blanks, but notice that they do convey a ritual social meaning which, although it doesn't correspond to the literal meaning of the sentence, is nonetheless meaningful.
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WORDS IN A SENTENCE
wordsinasentence.com › meaningless-in-a-sentence
Meaningless: In a Sentence – WORDS IN A SENTENCE
November 29, 2018 - Examples of Meaningless in a sentence · Trying to empty the ocean by using a bucket to take water out of it is an entirely meaningless task that will never accomplish anything. 🔊 · Since I already own the newest smartphone model, it would be meaningless to buy another one.
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Encyclopedia Britannica
britannica.com › dictionary › meaningless
Meaningless Definition & Meaning | Britannica Dictionary
a meaningless phrase · [+] more examples [-] hide examples [+] Example sentences [-] Hide examples · 2 · : having no real importance or value · He felt that his work was meaningless.
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Dictionary.com
dictionary.com › browse › meaningless
MEANINGLESS Definition & Meaning | Dictionary.com
MEANINGLESS definition: without meaning, mean, meaning, significance, purpose, or value; purposeless; insignificant. See examples of meaningless used in a sentence.
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Prezi
prezi.com › 2_6oslawdpi3 › meaningful-and-meaningless-sentences
Meaningful and meaningless sentences by Mile Cortes on Prezi
Meaningful and Meaningless Sentences Sentences Is A sentence is a grammatical unit that is composed of one or more clauses. What is a Meaningful sentence? A meaningful sentence is one that use context clues and synonyms to convey the meaning of a vocabulary word in the sentence.
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Cambridge Dictionary
dictionary.cambridge.org › us › dictionary › english › meaningless
MEANINGLESS | definition in the Cambridge English Dictionary
2 weeks ago - MEANINGLESS meaning: 1. having no meaning: 2. having no importance or value: 3. having no meaning: . Learn more.
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Inc.com
inc.com › home › 14 meaningless phrases effective leaders never use
14 Meaningless Phrases Effective Leaders Never Use
February 27, 2016 - As part of that effort, he’s ... conversations. He defines the unnecessary add-on as, “a phrase or expression tacked on to the beginning or end of a sentence....