1. small enough or unimportant as to be neglected.   lunar   iridescent   static   negligible   Hint Half-n-half Clue   2. pertaining to time; secular.   sidereal   temporal   pungent   soluble   Half-n-half Clue   3. permeable or having pores.   stratified   monochromatic   porous   volatile   Half-n-half Clue   4. used as preventive for spread of disease.   synchronous   soluble   tautological   prophylactic   Half-n-half Clue   5. pertaining to a semi-fluid gluey consistency.   valid   viscid   precipitate   terrestrial   Half-n-half Clue   6. inert or at rest.   quiescent   striated   resilient   translucent   Half-n-half Clue   7. hidden potential, not manifest.   latent   rigid   visceral   pulmonary   Half-n-half Clue