1. PERFUNCTORY   loud and harsh   abundantly productive   superficial   impossible to see through   Hint Half-n-half Clue   2. ORNATE   elaborately ornamented   full   wasteful   unsafe   Half-n-half Clue   3. PREVALENT   deep   dissolute   widespread   practical   Half-n-half Clue   4. PRODIGAL   impudently taking liberty   pompous   wasteful   threatening   Half-n-half Clue   5. PERIPHERAL   sturdy   withdrawn   wasteful   marginal   Half-n-half Clue   6. RESPLENDENT   pompous   obdurate   brilliant   deep   Half-n-half Clue   7. PONDEROUS   abundantly productive   practical   unwieldy   threatening   Half-n-half Clue