| erratic(loose, doubtful, vague, hesitant, unreliable) | |
| eternal(constant, abundant, monotonous, unrestrained, endless) | |
| evasive(adjective, uncertain, doubtful, vague, dubious) | |
| everlasting(constant, abundant, unrestrained, vast, endless) | |
| far-fetched(shaky, unlikely, unpromising) | |
| fat chance(expression, shaky, unlikely, unpromising) | |
| fatal | |
| fatidic | |
| filmy | |
| fishy(uncertain, doubtful, shaky, vague, dubious) | |
| fluctuant(adjective, uncertain, nervous, doubtful, shaky) | |
| fluky | |
| fly-by-night(adjective, loose, uncertain, nervous, doubtful) | |
| generic | |
| gigantic | |
| great | |
| hanging(unsettled, incomplete, imminent, undecided, pendent) | |
| haphazard | |
| hazardous(shaky, unlikely, unpromising) | |
| hesitant(uncertain, doubtful, unsettled, vague, indefinite) |
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| APA | Smart Define. (2015). indeterminate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/indeterminate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indeterminate thesaurus" https://smartdefine.org/indeterminate/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, indeterminate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/indeterminate/thesaurus/synonyms>. |
| MLA | Smart Define. "indeterminate thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/indeterminate/thesaurus/synonyms> |