petrified, numb - so frightened as to be unable to move; stunned or paralyzed with terror; "petrified with fear"; "she was petrified by the eerie sound"; "too numb with fear to move" Antonyms:unafraid, fearless (indirect, via afraid)
rigidify, ossify, petrify - make rigid and set into a conventional pattern; "rigidify the training schedule"; "ossified teaching methods"; "slogans petrify our thinking" --3is one way tostiffen Sample sentence: Something ----s something