instantaneous reaction

Split-second reply

An instantaneous reaction happens immediately, without delay or deliberation.

In chemistry, it describes reactions that occur too rapidly to measure.

In everyday use, it often means a gut response: My instantaneous reaction was to laugh.

The phrase emphasizes speed—the reaction comes before conscious thought can intervene.

Related

knee-jerk response · impulse · spur of the moment · gut · gut feeling · flinch · startle · fight or flight · twitch · blink · recoil · spontaneous · automatic · instinct · snap judgment · trigger · spark · flash

Opposites
temporal speed

instantaneous reactiondelayed response

Reply arriving after expected

slow reaction · measured response

deliberateness/intentionality

instantaneous reactiondeliberate choice

Decision made on purpose

conscious decision · measured response

reflexivity vs. planning

instantaneous reactionstrategic planning

Defining organizational direction systematically

systematic approach · forward thinking · contingency planning

Family

instant, instantly, instantaneously, instance, instances, react, reacts, reacted, reacting

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G