inhibition

command, control, mastery, possession

self-censorship, self-containment, self-denial, self-discipline, self-government, self-mastery, will, willpower

composure, self-poise, self-possession

aloofness, detachedness, distance

bashfulness, modesty, shyness

reticence, silence, taciturnity

catch, hitch, rub, snag

barrier, blockade, blockage, brick wall, stone wall

arrest, bit, brake, check, constraint, curb, hobble, rein, restraint

embargo, stoppage

delay, holdup, stall

burden, cumber, load

danger, hazard, peril, reef

adversity, difficulty, disadvantage, drawback, hardship