reflex
Intermediate (B1)
IPA: /ˈrɪflɛks/
KK: /ˈrɪflɛks/
adjective
Definition
Relating to an automatic or involuntary action that happens in response to a stimulus, like blinking or sneezing.
Example
The reflex action of blinking protects the eyes from dust.
Conversation
Did you see how quickly he reacted to that ball?
Yeah, his reflex skills are amazing!
I wish I had such fast reflex responses in sports.
With practice, you might get there too!
Synonyms & Antonyms
Synonyms
automatic
involuntary
reactive
Antonyms
deliberate
intentional
voluntary
noun
Definition
A natural, automatic response to something that happens, often without thinking about it.
Example
When the doctor tapped my knee, my leg kicked out in a reflex action.
Conversation
Did you know that your body has a natural reflex when you touch something hot?
Yeah, it pulls your hand away almost instantly!
It's amazing how our reflex actions keep us safe without us even thinking about it.
transitive verb
Definition
To cause something to bend, turn back, or reflect.
Example
The mirror reflexes the light, creating a bright reflection.
Tense Forms
Past: reflexed
Past Participle: reflexed
Conversation
Did you know that light can reflex off surfaces in different ways?
Yeah, that's why some places look brighter than others!
Exactly! It's fascinating how that works with mirrors, too.
Root Explanation
Reflex → It is formed from "re-" (meaning back) and "flectere" (meaning to bend). The word describes something that bends back, particularly in response to a stimulus, as in a reflex action.
Memory Tip
Think of something bending 'back' ('re-') in response to a stimulus — that's what a reflex does.
Visually Confused Words
trefle
deflex
retroflex
flex