| Penetrable (a.) Capable of being entered or pierced. Thesaurus Entries accessible, apprehensible, approachable, articulate, assailable, attackable, attainable, available, beatable, cognizable, come-at-able, comprehensible, conquerable, easily understood, easy to understand, exoteric, expugnable, fathomable, findable, getatable, gettable, intelligible, knowable, obtainable, open, open to, openable, permeable, pervious, plumbable, porose, porous, pregnable, prehensible, procurable, reachable, readable, scrutable, securable, surmountable, to be had, understandable, vincible, vulnerable, weak, within reach |