act involuntarily

Synonyms:

act reflexively

Types:

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sneeze

exhale spasmodically, as when an irritant entered one's nose

blink, nictate, nictitate, wink

briefly shut the eyes

break wind, fart

expel intestinal gases through the anus

salivate

produce saliva

palpebrate

wink or blink, especially repeatedly

bat, flutter

wink briefly

dribble, drivel, drool, slabber, slaver, slobber

let saliva drivel from the mouth

Type of:

act, behave, do

behave in a certain manner; show a certain behavior; conduct or comport oneself