1. of a derived kind or obtained from another source.   carcinogenic   embryonic   cognitive   derivative   Hint Half-n-half Clue   2. cold like ice.   glacial   deciduous   eugenic   diurnal   Half-n-half Clue   3. sealed by fusion to be air-tight.   acrid   congruent   hermetic   combustible   Half-n-half Clue   4. pertaining to the brain.   integral   cerebral   indeterminate   abrasive   Half-n-half Clue   5. heat-liberating.   carcinogenic   astringent   brackish   calorific   Half-n-half Clue   6. not concentric or odd.   heterodox   indeterminate   eccentric   inevitable   Half-n-half Clue   7. of motive force or energetic.   centrifugal   dynamic   inverse   implicit   Half-n-half Clue