1. TACITURN   saying very little   unjustified   excessive   workable   Hint Half-n-half Clue   2. SUCCINCT   diplomatic   seated   terse   conscientious   Half-n-half Clue   3. UNPRECEDENTED   bitterly hostile   untidy   not done before   of lesser rank   Half-n-half Clue   4. TENTATIVE   not certain   occurring irregularly   shallow   inconspicuous   Half-n-half Clue   5. SUBORDINATE   unjustified   of lesser rank   equivalent   inconspicuous   Half-n-half Clue   6. UNWARRANTED   of lesser rank   causing sleep   submissive   unjustified   Half-n-half Clue   7. VOLUBLE   stolid   talkative and fluent   excessive   gloomy   Half-n-half Clue