stiffen Antonyms

loosen be against relax necklace melt loose liquefy inflection fluidize flexure flax soften thawing cool off doubles featherbed ease up ease off cool down calm down loosen up wire weaken fight erosion contradict contest confront combust combat colt challenge braiding bowstring assail controvert cord ease dissolve dissent dispute disapprove disagree deny defy counteract counter angling