1. pertaining to the art of gardening.   astral   aseptic   horticultural   elliptical   Hint Half-n-half Clue   2. having human form or personality.   anthropomorphic   generic   heterodox   carcinogenic   Half-n-half Clue   3. large or extensive like the heavenly bodies.   astronomical   implicit   amorphous   astral   Half-n-half Clue   4. pertaining to the brain.   astronomical   cerebral   brittle   inevitable   Half-n-half Clue   5. capable of being drawn into wire or flexible.   biennial   carnivorous   generic   ductile   Half-n-half Clue   6. inferred by reasoning; derived as conclusions.   deducible   finite   inductive   inert   Half-n-half Clue   7. impervious or unpassable.   hybrid   impermeable   centrifugal   ebullient   Half-n-half Clue