MEANING: adjective:
1. Unthinking; instinctive; spontaneous.
2. Thoughtful; reflective.
3. In grammatical contexts: Directed on itself.

ETYMOLOGY: From Latin reflectere (to bend back), from re- (back) + flectere (to bend). Earliest documented use: 1588.

DEFLEXIVE - faulty bending

REFLEX ICE - how you automatically treat a sprained ankle

REFLEX AVE - of course you're going to call for a Hail Mary play in this situation