think fast
Decide under pressure
Think fast is a command to react quickly, usually shouted as a warning just before throwing something at someone: Think fast! he said, tossing me the keys.
The phrase implies no time for deliberation—you must respond instinctively or face consequences, whether catching an object or handling a sudden problem.
- brainstormSpontaneous idea generation
- improvisePerform without preparation
- ad-libUnscripted speech or remark
- impromptuWithout advance preparation
- improv comedyUnscripted comedic theater
wing · riff · emergencies · mental agility · split-second · intuition · heat of the moment · under the gun · logic puzzles · cognitive flexibility · creative problem-solving · crisis management · escape rooms · pop quiz · rapid fire · medical triage · speed reading · quick reflexes
think fastmull it over
Think about at length
deliberate · sleep on it · take your time · take one's time · think it through
think, fast, thinks, thinking, thought, thoughtful, thoughtfulness, thoughtless, thoughtlessness