1. plenitude   PESSIMISM   OSTENTATION   PROFUSION   PIETY   Hint Half-n-half Clue   2. bitterness   RECLUSE   PACIFIST   RANCOR   QUANDARY   Half-n-half Clue   3. obscurity   PARSIMONY   OBLIVION   PROSPERITY   PREDECESSOR   Half-n-half Clue   4. one who views positively   OPTIMIST   PREDATOR   PREDILECTION   PESSIMISM   Half-n-half Clue   5. one who exploits for gain   PACIFIST   QUANDARY   PROFUSION   OPPORTUNIST   Half-n-half Clue   6. rapid multiplication   PACIFIST   PAUCITY   PREDECESSOR   PROLIFERATION   Half-n-half Clue   7. doer of good   PROFUSION   RECLUSE   OSTENTATION   PHILANTHROPIST   Half-n-half Clue