1. equivalent   SUBORDINATE   WHIMSICAL   SURREPTITIOUS   TANTAMOUNT   Hint Half-n-half Clue   2. inconspicuous   UNOBTRUSIVE   SUPERFICIAL   SPURIOUSNESS   VENERABLE   Half-n-half Clue   3. seated   STRIDENT   STEADFAST   SUSCEPTIBLE   SEDENTARY   Half-n-half Clue   4. stolid   UNOBTRUSIVE   STOIC   VERBOSE   SCANTY   Half-n-half Clue   5. overused   WARY   TRITE   UNPRECEDENTED   SOPORIFIC   Half-n-half Clue   6. causing sleep   SUPERFICIAL   VOLUBLE   VIABLE   SOPORIFIC   Half-n-half Clue   7. submissive   SPURIOUSNESS   SERVILE   SURREPTITIOUS   SUCCINCT   Half-n-half Clue