1. PERPETUAL   continuous   agricultural   flowing   motion   momentary   Hint Half-n-half Clue   2. PERIGEE   escapee   eclipsed   mongrel   pure-bred   apogee   Half-n-half Clue   3. LAX   studious   steady   strict   furor   flicker   Half-n-half Clue   4. PERNICIOUS   audacious   tangible   priceless   very dear   harmless   Half-n-half Clue   5. PERIPATETIC   foretold   stationery   nimble   apathetic   stationary   Half-n-half Clue   6. LAMPOON   lighten   delay   contrast   praise   darkness   Half-n-half Clue   7. LANGUOR   vitality   scholarly   foolish   serious   monkey-around   Half-n-half Clue