40 entries under undecided topic. ×

6
uncertain(adjective, open, certain, uncertain, nervous)
6
unresolved(adjective, open, certain, uncertain, doubtful)
6
unsettled(adjective, open, certain, uncertain, doubtful)
5
doubtful(adjective, open, uncertain, nervous, unsettled)
2
open(adjective, certain, uncertain, nervous, doubtful)
2
questionable(adjective, uncertain, doubtful, unsettled, vague)
2
undetermined(adjective, open, certain, uncertain, unsettled)
1
ambiguous(adjective, open, uncertain, doubtful, unsettled)
1
awaiting(unsettled, incomplete, imminent, pendent)
1
betwixt and between(expression, idiom, open, uncertain, vague)
1
continuing(unsettled, incomplete, imminent, pendent)
1
debatable(adjective, open, uncertain, doubtful, unsettled)
1
dependent(unsettled, incomplete, imminent, pendent)
1
dubious(adjective, open, uncertain, nervous, doubtful)
1
equivocal(adjective, open, uncertain, doubtful, unsettled)
1
hanging(unsettled, incomplete, imminent, pendent)
1
hesitant(open, uncertain, doubtful, worried, vague)
1
in line(expression, unsettled, incomplete, imminent)
1
in the balance(expression, adjective, idiom, uncertain, imminent)
1
in the offing(expression, idiom, unsettled, incomplete, imminent)
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APASmart Define. (2011). up in the air thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/up_in_the_air/thesaurus/synonyms
ChicagoSmart Define. 2011. "up in the air thesaurus" https://smartdefine.org/up_in_the_air/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2011, up in the air thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/up_in_the_air/thesaurus/synonyms>.
MLASmart Define. "up in the air thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/up_in_the_air/thesaurus/synonyms>