CIRCLE THE WORD THAT IS NOT SYNONYM FOR THE GIVEN WORD.
1. PURIFY- CLARIFY, FUMIGATE, CASTIGATE, CHASTEN
2. DREARY- CHEERLESS, ABIDING, DOLEFUL, MELANCHOLY
3. COMPULSION- POTENCY, FRAILTY, FORCE, URGENCY
4. NULLIFY- IMPARTIAL, DELETE, OBLITERATE, VAGUE
5. MEDIOCRE- GREAT, COMMONPLACE, MEDIAN, PASSABLE