1. EXASPERATE   anger   confide   purge   fasten   placate   Hint Half-n-half Clue   2. EUPHONIOUS   merry   strident   studious   stern   capable   Half-n-half Clue   3. EQUILIBRIUM   harmony   imbalance   tranquility   inequity   serenity   Half-n-half Clue   4. DEARTH   abundance   defiance   terror   anxiety   brightness   Half-n-half Clue   5. DAPPER   unhealthy   steady   untidy   wrapped   ungrateful   Half-n-half Clue   6. CENTRIFUGAL   algebraic   mercuric   distributed   centripetal   central   Half-n-half Clue   7. DEBACLE   miraculous   progress   refusal   busy   defer   Half-n-half Clue