14 entries under strong topic. ×

5
shaky(adjective, sound, doubtful)
3
unreliable(adjective, clear, counterfeit, uncertain)
3
hazardous(adjective, safe, unpredictable, dangerous)
3
insecure(adjective, uncertain, steady, worried)
3
precarious(adjective, stable, doubtful, tricky)
1
risky(adjective, safe, dangerous)
1
unsafe(adjective, secure)
1
unsound(sound, well)
0
bundle of nerves(expression, idiom)
0
going for broke(expression, idiom, honest)
0
perturbable
0
pettish
0
touchy
0
wired up(expression, calm)
10 years ago|8.4k views|share |citing 
APASmart Define. (2016). certain thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/certain/thesaurus/antonyms
ChicagoSmart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, certain thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/certain/thesaurus/antonyms>.
MLASmart Define. "certain thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/certain/thesaurus/antonyms>