1. excessive   SURREPTITIOUS   SUPERFLUOUS   TRITE   STEADFAST   Hint Half-n-half Clue   2. saying very little   TURBID   TANTAMOUNT   TACITURN   TRITE   Half-n-half Clue   3. not certain   TENTATIVE   SURREPTITIOUS   SUBMISSIVE   SUPERFLUOUS   Half-n-half Clue   4. implied but not stated   STEADFAST   STAGNANT   THREADBARE   TACIT   Half-n-half Clue   5. mocking   SLUGGISH   SUBMISSIVE   SATIRICAL   TANTAMOUNT   Half-n-half Clue   6. holding fast   SEDENTARY   STEADFAST   VIABLE   TENACIOUS   Half-n-half Clue   7. conscientious   SUSCEPTIBLE   SUPERFLUOUS   SCRUPULOUS   SCANTY   Half-n-half Clue