92 entries under casual topic. ×
| mixed(adjective, simple, easy, plain, straightforward) | |
| motley(adjective, simple, easy, plain, straightforward) | |
| on-the-spot(free, informal, impulsive, snap) | |
| on impulse(expression, free, informal, unrehearsed) | |
| sporty(adjective, simple, easy, plain, straightforward) | |
| throwaway(adjective, simple, easy, plain, straightforward) | |
| toss off(expression, free, impulsive, unprepared) | |
| toss out(expression, free, impulsive, unprepared) | |
| unceremonious(adjective, calm, simple, plain, straightforward) | |
| unconcerned(adjective, calm, careless, comfortable) | |
| unconventional(adjective, simple, easy, plain, straightforward) | |
| unexpected(adjective, passionate, violent, careless) | |
| unfussy(adjective, simple, easy, plain, relaxed) | |
| unofficial(adjective, simple, easy, plain, straightforward) | |
| urbane(adjective, calm, simple, plain, informal) | |
| willy-nilly(careless, arbitrary) | |
| winging it(expression, free, thoughtless, unrehearsed) | |
| without ceremony(expression, adjective, simple, straightforward) | |
| all over the map(expression, idiom, careless, arbitrary) | |
| any old way(expression, idiom, careless, arbitrary) |
For more, visit
Spontaneous on
Power Thesaurus
| APA | Smart Define. (2015). spontaneous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/spontaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "spontaneous thesaurus" https://smartdefine.org/spontaneous/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, spontaneous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/spontaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "spontaneous thesaurus" 3 August 2015. Web. 30 September 2026. <https://smartdefine.org/spontaneous/thesaurus/synonyms> |