21 entries under informal topic. ×
| extemporaneous(adjective, adverb, unplanned, extemporize) | |
| impromptu(adjective, adverb, unplanned, spontaneously) | |
| improvised(adjective, adverb, unplanned, improv) | |
| ad-lib(adjective, adverb, unplanned, spontaneously) | |
| makeshift(unplanned, off-the-cuff) | |
| according to pleasure(expression, adjective, idiom, adverb) | |
| as one thinks best(expression, adjective, idiom, adverb) | |
| as one wishes(expression, adjective, idiom, adverb) | |
| at will(expression, adjective, adverb, unplanned) | |
| made-up(adjective, adverb, unplanned, extemporize) | |
| off-the-cuff(adjective, adverb, unplanned, extemporize) | |
| spontaneous(unplanned, extemporize, off-the-cuff, extemporise) | |
| unprepared(adjective, impulsive, spontaneous, unexpected) | |
| unrehearsed(adjective, adverb, unplanned, extemporize) | |
| without restraint(expression, adjective, adverb, unplanned) | |
| ad hoc(expression, adjective, unplanned, spur-of-the-moment) | |
| extempore(unplanned, extemporize, off-the-cuff, extemporise) | |
| extemporize(unplanned, off-the-cuff, extemporise) | |
| extemporized(unplanned, extemporize, off-the-cuff, extemporise) | |
| improvise(unplanned, extemporize, off-the-cuff, extemporise) |
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| APA | Smart Define. (2015). ad libitum thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/ad_libitum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ad libitum thesaurus" https://smartdefine.org/ad_libitum/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, ad libitum thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/ad_libitum/thesaurus/synonyms>. |
| MLA | Smart Define. "ad libitum thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/ad_libitum/thesaurus/synonyms> |