1
uncertain
1
undetermined
1
unintentional
1
unpredictable
1
unpremeditated
1
unready
1
unspecified
1
unstable
1
unsure
1
unwitting
1
up
1
uprise
1
vacillating
1
vagabond
1
wavering(adjective, weak, yielding)
1
whimsical
0
abrupt
0
adaptable
0
adieu
0
adrift
10 years ago|3.6k views|share |citing 
APASmart Define. (2016). set thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/set/thesaurus/antonyms
ChicagoSmart Define. 2016. "set thesaurus" https://smartdefine.org/set/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, set thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/set/thesaurus/antonyms>.
MLASmart Define. "set thesaurus" 1 March 2016. Web. 21 September 2026. <https://smartdefine.org/set/thesaurus/antonyms>