| incidental(adjective, occasion, happening, accident) |
| uncalculated(adjective, occasion, happening, accident) |
| unexpected(adjective, occasion, happening, accident) |
| unforeseen(adjective, occasion, happening, accident) |
| unintended(adjective, occasion, happening, accident) |
| unintentional(adjective, occasion, happening, accident) |
| unplanned(adjective, occasion, happening, accident) |
| contingency(noun, trip, undertaking, risk, adventure) |
| emprise(noun, trip, undertaking, risk, adventure) |
| endangerment(noun, trip, undertaking, risk, adventure) |
| enterprise(noun, trip, undertaking, risk, adventure) |
| experience(noun, trip, undertaking, risk, adventure) |
| exploit(noun, trip, undertaking, risk, adventure) |
| feat(noun, trip, undertaking, risk, adventure) |
| fortune(noun, fate, future, destiny, esoterics) |
| happening(noun, trip, undertaking, risk, adventure) |
| hazard(noun, trip, undertaking, risk, adventure) |
| incident(noun, trip, undertaking, risk, adventure) |
| jeopardy(noun, trip, undertaking, risk, adventure) |
| occurrence(noun, trip, undertaking, risk, adventure) |