1. stubborn or rebellious.   stellar   spatial   resilient   refractory   Hint Half-n-half Clue   2. pertaining to seed or semen; germinal.   seminal   putrid   vitreous   omnivorous   Half-n-half Clue   3. with a saw-toothed edge.   serrated   ovoid   osseous   partial   Half-n-half Clue   4. dissolvable (in solvent) or solvable (of problem).   soluble   seismic   striated   obtuse   Half-n-half Clue   5. at rest or in equilibrium.   vitriolic   toxic   osseous   static   Half-n-half Clue   6. penetrable or allowing fluids to pass through.   permeable   tactile   opalescent   luminous   Half-n-half Clue   7. suitable for drinking.   potable   obtuse   omnivorous   terrestrial   Half-n-half Clue