1. elastic or having the ability to bounce back.   precise   resilient   rigid   vitreous   Hint Half-n-half Clue   2. pertaining to extracting and processing metals.   latent   metallurgical   static   viscid   Half-n-half Clue   3. capable of being shaped by hammering or pliable.   malleable   seminal   rigid   refractory   Half-n-half Clue   4. related to a diagram or outline.   obtuse   schematic   stagnant   synthetic   Half-n-half Clue   5. unattractive or repulsive.   serrated   translucent   molten   repellent   Half-n-half Clue   6. unnecessarily repetitious.   tautological   negligible   partial   schematic   Half-n-half Clue   7. partly transparent or allowing some light to pass.   malleable   oblique   translucent   lunar   Half-n-half Clue