1. INTRACTABLE   unyielding   insurmountable   fearless   unavoidable   Hint Half-n-half Clue   2. MUNDANE   sullen   unavoidable   routine   joking   Half-n-half Clue   3. MUNIFICENT   calm   inactive   clever   splendidly generous   Half-n-half Clue   4. NEFARIOUS   praiseworthy   stingy   opposite to that expected   criminal   Half-n-half Clue   5. INSUPERABLE   big-hearted   calm   instinctive   insurmountable   Half-n-half Clue   6. INNATE   inborn   dull   scanty   blameless   Half-n-half Clue   7. MALICIOUS   blameless   harmless   unable to decide   spiteful   Half-n-half Clue