1. disloyal   PERFIDIOUS   OPAQUE   PROSAIC   OBSTINATE   Hint Half-n-half Clue   2. superficial   PRUDENT   RELEVANT   PERFUNCTORY   REPREHENSIBLE   Half-n-half Clue   3. threatening   PRODIGAL   PERFIDIOUS   QUALIFIED   OMINOUS   Half-n-half Clue   4. unsafe   PRECARIOUS   PERVASIVE   PERFIDIOUS   PREVALENT   Half-n-half Clue   5. wealthy   PITHY   OPULENT   PROLIFIC   ORNATE   Half-n-half Clue   6. full   RAUCOUS   REPLETE   OPAQUE   RELEVANT   Half-n-half Clue   7. advanced in development   PRECOCIOUS   PRECARIOUS   PERFIDIOUS   PROVINCIAL   Half-n-half Clue