1
ticklish(adjective, weak, delicate, uncertain, unstable)
1
torn
1
touch-and-go(uncertain, shaky, unclear, unlikely, questionable)
1
touch and go(expression, adjective, idiom, delicate, uncertain)
1
touchy(adjective, open, delicate, uncertain, nervous)
1
tricky(adjective, weak, delicate, uncertain, unstable)
1
ultimate(noun, top, point, limit, extreme)
1
unassured(adjective, uncertain, nervous, doubtful, shaky)
1
uncommitted
1
unconfident(adjective, uncertain, nervous, doubtful, shaky)
1
unconfirmed(uncertain, shaky, unclear, unlikely, questionable)
1
unconvinced(adjective, uncertain, nervous, doubtful, shaky)
1
undependable(adjective, uncertain, nervous, doubtful, shaky)
1
undetermined
1
unhealthy(adjective, delicate, uncertain, unstable, doubtful)
1
unpredictable(uncertain, uneven, unbalanced, questionable, unhinged)
1
unreliable(adjective, delicate, uncertain, nervous, unstable)
1
unsafe(adjective, delicate, uncertain, unstable, doubtful)
1
unsteady(adjective, weak, delicate, uncertain, unstable)
1
untrustworthy(adjective, weak, uncertain, nervous, sensitive)
<1678910>
11 years ago|8.9k views|share |citing 
APASmart Define. (2015). borderline thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/borderline/thesaurus/synonyms
ChicagoSmart Define. 2015. "borderline thesaurus" https://smartdefine.org/borderline/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, borderline thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/borderline/thesaurus/synonyms>.
MLASmart Define. "borderline thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/borderline/thesaurus/synonyms>