9
unusual
8
occasional
6
uncommon
5
infrequent(adjective, unusual)
5
rare
4
curious
4
groundbreaking(adjective, old, outdated, obsolete)
4
intermittent
4
irregular
3
bizarre
3
magic
3
one-of-a-kind
2
abnormal
2
amazing
2
eccentric
2
episodic
2
extraordinary
2
futuristic
2
strange(adjective, boring)
2
underdog
<123459>
10 years ago|1.9k views|share |citing 
APASmart Define. (2016). habitual thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/habitual/thesaurus/antonyms
ChicagoSmart Define. 2016. "habitual thesaurus" https://smartdefine.org/habitual/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, habitual thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/habitual/thesaurus/antonyms>.
MLASmart Define. "habitual thesaurus" 23 March 2016. Web. 24 September 2026. <https://smartdefine.org/habitual/thesaurus/antonyms>