on a whim
Without any planning
On a whim means acting suddenly from a passing impulse rather than planning or deliberation: She bought the plane ticket on a whim.
The phrase suggests spontaneity without serious thought—decisions made because the mood struck, not because they were carefully considered.
On a whim, he quit his job and moved to Portugal.
- capriceUnpredictable urge or notion
- impetuousnessRash, unthinking haste
- spontaneityActing without forethought
- just like thatImmediately, without transition
- last minuteJust before deadline
snap · on impulse · lark · serendipity · out of nowhere · knee-jerk reaction · improvisation · flightiness · fly by night · for kicks · wild hair · rashness · snap judgment · split second · spur of the moment · at the drop of a hat · in a heartbeat · heat of the moment
- impulsive actionsspur of the moment, snap decision, knee-jerk reaction, rush in, heat of the moment
- Spontaneityimpulse, snap decision, sudden urge, improvisation, improv
deliberation and planning
on a whimdeliberately
Done with intention
by design · intentionally · methodically · strategically · calculatedly