open-ended
reflexive
aspontaneity
conditioned reaction
conditioned response
acquired reflex
conditioned reflex
conditional response
conditional reflex
conditional reaction
bent
set
predisposition
counterreaction
spontaneity
gut reaction
spontaneously
reverberation
repercussion
rock up
downregulation
corresponsive
ultroneously
abruptly
dead
on the spur of the moment
short
suddenly
all of a sudden
crack
autoresponse
of a sudden
instinctive reflex
inborn reflex
postreaction
reflex action
promptly
right away
innate reflex
unconditioned reflex
physiological reaction
reflex response
reflex
expontaneous
accord
unplanned
conditioned avoidance
aversive stimulus
conditioned avoidance response
magic wand