Synonyms of tightened

1 Syllable
pinch, screw, stretch, cramp, crush, fix, clench, grip, tight, bind, strain
2 Syllables
compress, tightest, squeeze, stiffen, narrow, contract, harden, skintight, toughen, tense, fasten, strangle, tauten, congeal, close, tighter
3 Syllables
condense, secure, pressure
4 Syllables
rigidify, close-fitting