1. infinitely small or very tiny.   centripetal   infinitesimal   concurrent   deducible   Hint Half-n-half Clue   2. having common center.   homogeneous   integral   hazardous   concentric   Half-n-half Clue   3. large or extensive like the heavenly bodies.   astronomical   hazardous   aromatic   heterogenous   Half-n-half Clue   4. impenetrable or unpassable.   impervious   carnivorous   immune   cosmic   Half-n-half Clue   5. based on hypotheses or assumptions.   diurnal   hypothetical   anthropomorphic   eugenic   Half-n-half Clue   6. existing from birth.   implicit   congenital   astronomical   astral   Half-n-half Clue   7. implied but not expressed.   convex   implicit   determinate   ciliated   Half-n-half Clue