| fit(useful, practical, convenient) | |
| fitting(useful, practical, convenient) | |
| free agent(expression, adjective, temporary) | |
| freelance | |
| helpful(useful, practical, convenient) | |
| hic | |
| hit-or-miss(spontaneous, unplanned, unpremeditated) | |
| improvise(informal, unplanned, off-the-cuff) | |
| impulsive(spontaneous, unprepared, unplanned) | |
| independent(adjective, temporary) | |
| irregular(adjective, temporary) | |
| judicious(useful, practical, convenient) | |
| meet(useful, practical, convenient) | |
| new(present, current, modern, contemporary) | |
| non-staff(adjective, temporary) | |
| now(present, current, modern, contemporary) | |
| occasional | |
| off top of head(expression, idiom, informal, snap, unrehearsed) | |
| opportune(useful, practical, convenient) | |
| out of the blue(expression, idiom, unprepared) |
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| APA | Smart Define. (2016). ad hoc thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ad_hoc/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ad hoc thesaurus" https://smartdefine.org/ad_hoc/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, ad hoc thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ad_hoc/thesaurus/synonyms>. |
| MLA | Smart Define. "ad hoc thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/ad_hoc/thesaurus/synonyms> |