27 entries under unplanned topic. ×
| casual(adjective, careless, chance, extra, surprise) | |
| fortuitous(adjective, extraordinary, wonderful, chance, casual) | |
| adventitious(adjective, chance, casual, irregular, secondary) | |
| unintentional(adjective, careless, chance, casual, planned) | |
| incidental(adjective, careless, chance, casual, minor) | |
| unforeseen(adjective, extraordinary, wonderful, chance, casual) | |
| unintended(adjective, careless, chance, casual, innocent) | |
| serendipitous(adjective, chance, lucky, unpremeditated) | |
| undesigned(adjective, intention, unknowing, unaware) | |
| aimless(adjective, careless, casual, irregular, innocent) | |
| involuntary(adjective, careless, casual, innocent, ignorant) | |
| occasional(adjective, chance, secondary, subsidiary, related) | |
| uncertain(adjective, chance, liable, dependent) | |
| by chance(expression, idiom, chance, unpremeditated) | |
| extemporaneous(chance, unpremeditated, inadvertent) | |
| extempore(chance, unpremeditated) | |
| impulsive(extraordinary, wonderful, chance, shocking, astonishing) | |
| off-the-cuff(chance, unpremeditated) | |
| offhand(adjective, careless, chance, casual, arbitrary) | |
| spontaneous(adjective, careless, chance, casual, erratic) |
For more, visit
Accidental on
Power Thesaurus
| APA | Smart Define. (2015). accidental thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/accidental/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "accidental thesaurus" https://smartdefine.org/accidental/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, accidental thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/accidental/thesaurus/synonyms>. |
| MLA | Smart Define. "accidental thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/accidental/thesaurus/synonyms> |