- Definitions|2
- Thesaurus|2.5k
- Abbreviations|0
| presumptuous(adjective, open, free, easy, friendly) | |
| prosaic(adjective, simple, common, ordinary, familiar) | |
| scratch | |
| slang(adjective, colloquial) | |
| spoken | |
| undemanding(mild, relaxed, tolerant, laid-back, permissive) | |
| unplanned(adjective, free, casual, impulsive, unprepared) | |
| unpremeditated(adjective, free, casual, snap, spontaneous) | |
| unprompted | |
| unsanctioned(adjective, unauthorized) | |
| unsophisticated(adjective, simple, common, usual, intimate) | |
| urbane(adjective, simple, casual) | |
| vagabond(adjective, wandering, vagrant, drifting, homeless) | |
| wanton(adjective, unconformity) | |
| able(adjective, clear, open, free, easy) | |
| abrupt | |
| accessible | |
| accustomed(adjective, plain, common, ordinary, usual) | |
| ad-lib(free, casual, impulsive, spontaneous, unprepared) | |
| ad hoc(expression, free, casual, snap, unrehearsed) |
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| APA | Smart Define. (2016). informal thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/informal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "informal thesaurus" https://smartdefine.org/informal/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, informal thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/informal/thesaurus/synonyms>. |
| MLA | Smart Define. "informal thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/informal/thesaurus/synonyms> |