1. pertaining to mental processes or knowing.   cognitive   determinate   graduated   impermeable   Hint Half-n-half Clue   2. practicable or possible.   brackish   inverse   indeterminate   feasible   Half-n-half Clue   3. cold like ice.   horticultural   heterogenous   impervious   glacial   Half-n-half Clue   4. imbalanced or not similar about dividing line.   asymmetric   discrete   homogeneous   determinate   Half-n-half Clue   5. grinding down or rubbing off.   horticultural   heterodox   astringent   abrasive   Half-n-half Clue   6. pertaining to the art of gardening.   dynamic   carcinogenic   horticultural   inert   Half-n-half Clue   7. sharply pungent.   determinate   integral   heterodox   acrid   Half-n-half Clue