Breaking out again or reemerging after temporary abatement or suppression(adjective)
Growing raw, sore, or painful again(adjective)
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Use "recrudescent" in a sentence
"Less a musical extravaganza than a pre-emptive wake, the summer "classic rock" festival is clouded by the shadow of the Grim Reaper, marking the triumph of the recrudescent, the cataleptic and James Taylor."
"Before he knew it, with a recrudescent guilty pang, he had tossed the half-smoked cigar away and slackened his pace until his feet dragged in the old lifeless, East Falls manner."
"Because of a recrudescent nativism, we send home thousands upon thousands of foreign students who have gotten masters and doctoral degrees in the hard sciences at American universities."