| unfixed(adjective, uncertain, doubtful, vague, hesitant) | |
| betwixt and between(expression, adjective, idiom, open, uncertain) | |
| faltering(adjective, weak, uncertain, doubtful, unsettled) | |
| in the balance(expression, adjective, idiom, uncertain, unsettled) | |
| independent | |
| infirm of purpose(expression, adjective, idiom, irresolution) | |
| mutable | |
| pendent(adjective, open, uncertain, definite, vague) | |
| problematical(adjective, debatable) | |
| torn(adjective, definite, sure) | |
| unpredictable(adjective, uncertain, doubtful, vague, hesitant) | |
| unreliable(adjective, uncertain, nervous, doubtful, vague) | |
| up in the air(expression, adjective, idiom, open, certain) | |
| weak(adjective, uncertain, nervous, doubtful, dubious) | |
| loose(adjective, open) | |
| assailable | |
| at issue | |
| at loose ends(expression, idiom) | |
| candid | |
| clear |
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| APA | Smart Define. (2015). undecided thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/undecided/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "undecided thesaurus" https://smartdefine.org/undecided/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, undecided thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/undecided/thesaurus/synonyms>. |
| MLA | Smart Define. "undecided thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/undecided/thesaurus/synonyms> |