15 entries under irregular topic. ×
| rare(adjective, exceptional, infrequent) | |
| occasional(adjective, regular, infrequent, sporadic) | |
| infrequent(adjective, regularly) | |
| sporadic(adjective, regular, infrequent) | |
| uncommon(adjective, ordinary, commonplace, infrequent) | |
| unusual(adjective, infrequent) | |
| inconstant(adjective, infrequent) | |
| intermittent(adjective, regular, infrequent) | |
| unrepeated(adjective, infrequent) | |
| interrupted(adjective, infrequent, perennial, seasonal) | |
| broken(adjective, infrequent) | |
| ceasing(adjective, infrequent, perennial, seasonal) | |
| continual(adjective, infrequent) | |
| ending(adjective, infrequent) | |
| permanent(adjective, infrequent) |
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| APA | Smart Define. (2015). frequent thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/frequent/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "frequent thesaurus" https://smartdefine.org/frequent/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, frequent thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/frequent/thesaurus/antonyms>. |
| MLA | Smart Define. "frequent thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/frequent/thesaurus/antonyms> |