12
uncertain(adjective, certain, nervous, unstable, opinion)
12
unconstrained(adjective, close, clear, light, free)
12
undefended(adjective, state, vulnerable, insecure, defenseless)
12
undetermined(adjective, certain, opinion)
12
unequivocal(adjective, clear, flat, honest, total)
12
unfastened(adjective, free, out, unrestricted, gaping)
12
upright(adjective, feature, characteristic, good, honor)
11
visible(adjective, clear, plain, bare, obvious)
11
ajar(adjective, adverb, open, unfastened, gaping)
11
pure(adjective, feature, characteristic, honor, simple)
11
righteous(adjective, feature, characteristic, good, honor)
11
veracious(adjective, feature, characteristic, honor, honest)
10
bounteous(adjective, behaviour)
10
evident(adjective, clear, plain, bare, obvious)
10
expansive(adjective, friendly, warm, spread, loose)
10
inaugurate(verb, make, start, raise, join)
10
launch(verb, make, start, raise, leave)
10
questionable(adjective, uncertain, opinion, doubtful, unsettled)
10
unsealed(adjective, bare, visible, resolved, unfastened)
10
untie(verb, clear, separate, release, free)
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APASmart Define. (2016). open thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/open/thesaurus/synonyms
ChicagoSmart Define. 2016. "open thesaurus" https://smartdefine.org/open/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, open thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/open/thesaurus/synonyms>.
MLASmart Define. "open thesaurus" 26 February 2016. Web. 21 September 2026. <https://smartdefine.org/open/thesaurus/synonyms>