1. of same kind or uniform.   concentric   ebullient   homogeneous   feasible   Hint Half-n-half Clue   2. related to embryo or undeveloped.   embryonic   abstract   incandescent   combustible   Half-n-half Clue   3. practicable or possible.   inverse   feasible   caustic   congruent   Half-n-half Clue   4. cancer-causing.   congenital   determinate   convex   carcinogenic   Half-n-half Clue   5. improving race by selective breeding.   hazardous   embryonic   eugenic   heterodox   Half-n-half Clue   6. capable of being drawn into wire or flexible.   humid   congenital   ductile   determinate   Half-n-half Clue   7. of a derived kind or obtained from another source.   centrifugal   derivative   centripetal   acrid   Half-n-half Clue