1. DECLIVITY   increasing activity   abatement   upward slope   youth   proclivity   Hint Half-n-half Clue   2. DEFECTION   faultless   strengthen   satirical   determination   joining   Half-n-half Clue   3. DEFILE   outrage   order   report   smoothen   purify   Half-n-half Clue   4. JETTISON   recapitulate   salvage   survive   treason   drown   Half-n-half Clue   5. INUNDATE   drain   abuse   strengthen   embolden   frighten   Half-n-half Clue   6. DELETERIOUS   shameful   time-consuming   punctual   delaying   harmless   Half-n-half Clue   7. IRRELEVANT   varied   impertinent   applicable   reveal   conceal   Half-n-half Clue