1. OPIATE   stimulant   despair   distinctive   tempestuous   distress   Hint Half-n-half Clue   2. OBTUSE   angular   useless   shrewd   curvaceous   rounded   Half-n-half Clue   3. DEFECTION   faultless   joining   strengthen   satirical   determination   Half-n-half Clue   4. INTREPID   unbiased   inflamed   fearless   craven   absolute   Half-n-half Clue   5. PEJORATIVE   positive   biased   derogatory   restorative   inciting   Half-n-half Clue   6. GNOME   dwarf   wizard   elf   giant   extra-terrestrial   Half-n-half Clue   7. ODIOUS   delightful   fragrant   noisy   smelly   stormy   Half-n-half Clue