penetrable (adj.)
- accessible
- apprehensible
- approachable
- articulate
- assailable
- attackable
- attainable
- available
- beatable
- cognizable
- come-at-able
- comprehensible
- conquerable
- exoteric
- expugnable
- fathomable
- getatable
- gettable
- intelligible
- knowable
- obtainable
- open
- permeable
- pervious
- plumbable
- porose
- porous
- pregnable
- prehensible
- procurable
- reachable
- readable
- scrutable
- surmountable
- understandable
- vincible
- vulnerable
- weak
And let me wring your heart; for so I shall,
If it be made of penetrable stuff.
