1. permeable or having pores.   saccharine   potable   redundant   porous   Hint Half-n-half Clue   2. pertaining to sugar or sweet.   precipitate   saccharine   mnemonic   potable   Half-n-half Clue   3. elastic or having the ability to bounce back.   transparent   mnemonic   pulmonary   resilient   Half-n-half Clue   4. without parallel or equal; one of its kind.   toxic   obtuse   unique   soluble   Half-n-half Clue   5. superfluous or excessive.   omnivorous   redundant   viscous   osseous   Half-n-half Clue   6. pertaining to earthquakes.   seismic   prophylactic   redundant   vitriolic   Half-n-half Clue   7. bony or having bones.   sidereal   precise   osseous   metallurgical   Half-n-half Clue