| aleatory | |
| capricious(adjective, unreliable, uneven, variable, erratic) | |
| changeable(adjective, irregular, unreliable, uneven, variable) | |
| cyclic | |
| desultory(adjective, chance, irregular, erratic, random) | |
| disconnected(adjective, unreliable, uneven, variable, erratic) | |
| few and far between(expression, adjective, idiom, light, slight) | |
| fortuitous(adjective, chance, secondary, subsidiary, related) | |
| interrupted(adjective, irregular, erratic, infrequent, recurrent) | |
| occasionally | |
| part-time | |
| recurrent(adjective, regular, irregular, routine, unreliable) | |
| sometimes | |
| spare(thin, scarce) | |
| specific(adjective, special, irregular, sporadic) | |
| unfrequent(adjective, irregular, sporadic) | |
| unsteady(adjective, unreliable, uneven, variable, erratic) | |
| accessory | |
| additional | |
| ado |
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| APA | Smart Define. (2015). occasional thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/occasional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "occasional thesaurus" https://smartdefine.org/occasional/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, occasional thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/occasional/thesaurus/synonyms>. |
| MLA | Smart Define. "occasional thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/occasional/thesaurus/synonyms> |