1. loud and harsh   RELEVANT   REPLETE   OPAQUE   RAUCOUS   Hint Half-n-half Clue   2. sturdy   ROBUST   RESPLENDENT   PROLIFIC   PRESUMPTUOUS   Half-n-half Clue   3. restricted   PERFUNCTORY   QUALIFIED   PRODIGAL   ROBUST   Half-n-half Clue   4. withdrawn   PRECOCIOUS   RHETORICAL   RECLUSIVE   PRODIGAL   Half-n-half Clue   5. superficial   PROVINCIAL   RESIGNED   RELEVANT   PERFUNCTORY   Half-n-half Clue   6. advanced in development   PROLIFIC   PRECOCIOUS   PERFIDIOUS   PROFOUND   Half-n-half Clue   7. marginal   PERIPHERAL   OPAQUE   PRECOCIOUS   PRAGMATIC   Half-n-half Clue