Sad synonyms vary by context and intensity. For general emotional sadness, consider:

• Unhappy (common, neutral)

• Depressed (stronger, often clinical)

• Miserable (intense, uncomfortable sadness)

• Melancholy (reflective, thoughtful sadness)

• Gloomy (atmospheric or mood-based)

• Sorrowful (deep, often grief-related)

• Downcast (temporary, situational)

For stronger or more vivid expressions:

• Heartbroken (deep emotional loss)

• Distraught (overwhelmed by sorrow)

• Wretched (extreme suffering)

• Dismal (describing bleak situations)

• Woeful (serious or tragic)

For mild or nuanced sadness:

• Blue (casual, "feeling blue")

• Low (emotional energy drained)

• Wistful (longing with a touch of nostalgia)

• Pensive (deeply thoughtful, often gently sad)

Use "sad" for everyday speech; "melancholy" or "distraught" for richer, more descriptive writing.