Synonyms for

Reflex

Verb / ˈri:fleks / Another word for reflex — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

an action that is performed automatically without conscious thought as a response to a stimulus

Synonyms & similar words

reflexresponse unconditionedreflex reflexive automatic reflexaction innatereflex instinctivereflex inbornreflex physiologicalreaction reaction response impulse instinct mechanism

Synonyms by register

Formal

involuntary action automatic response instinctive reaction unconditioned response

Informal

knee-jerk automatic quick reaction

Literary

spontaneous impulse unbidden motion

Antonyms

deliberate voluntary intentional conscious planned considered

Common collocations

  • knee-jerk reflex
  • startle reflex
  • pupillary reflex
  • stretch reflex
  • spinal reflex
  • optic reflex
  • reflex action

Word family

noun reflex
verb reflect
adjective reflexive

Usage note

Often used to describe an automatic, unthinking response. Be mindful that 'reflex' is a noun, and while 'reflexive' is an adjective, 'reflect' is a different word with a different meaning.

Example sentences

  1. When the doctor hit my knee with a hammer, my leg moved automatically. This is called a reflex.
  2. Blinking is a reflex action that protects our eyes from danger.
  3. If you touch a hot stove, your reflexes will cause you to quickly pull your hand away.

Quotes

  • "I have a reflex to take care of people." - Dolly Parton
  • "Doubt is the reflex action of the brain when an instinctive reflex has been aroused." - Robert Henri
  • "Love is a reflex, a natural instinct. But social media has taken it away from us." - Mike Posner

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