knee jerk reaction (noun) knee-jerk reaction: automatic response
Sinonime: absolute, assured,
certain, confident,
decided,
decisive,
demanding,
dogmatic,
domineering,
emphatic,
firm,
forceful,
forward,
insistent, militant,
overbearing, positive,
pushy, self-assured, self-confident, strong-willed, sure
Antonime: diffident,
quiet,
shy, unconfident