| unspecific(adjective, vague, unknown, general, unclear) | |
| vast(adjective, immense, infinite, boundless, unlimited) | |
| blurred | |
| equivocal(adjective, uncertainty, uncertain, doubtful, vague) | |
| forever(adjective, infinite) | |
| hit-or-miss | |
| nebulous | |
| questionable | |
| unending(adjective, immense, infinite, boundless, unlimited) | |
| unfixed(adjective, uncertain, vague, unknown, general) | |
| unrecognizable | |
| blear | |
| bleary | |
| blobby(rough, disorganized, unformed, amorphous, shapeless) | |
| bottomless(adjective, immense, infinite, boundless, unlimited) | |
| chaotic(rough, disorganized, unformed, amorphous, shapeless) | |
| countless(adjective, immense, infinite, boundless, unlimited) | |
| doubtful(adjective, weak, dark, uncertain, dim) | |
| dreamy | |
| dubious(adjective, uncertain, doubtful, vague, unknown) |
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| APA | Smart Define. (2015). undefined thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undefined/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "undefined thesaurus" https://smartdefine.org/undefined/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, undefined thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undefined/thesaurus/synonyms>. |
| MLA | Smart Define. "undefined thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/undefined/thesaurus/synonyms> |