not assailable; specif.,
- that cannot be successfully attacked or assaulted
- that cannot be successfully denied
- Impossible to dispute or disprove; undeniable: unassailable truths.
- Not subject to attack or seizure; impregnable: an unassailable fortress.
- un′as·sail′a·bil′i·ty, un′as·sail′a·ble·ness
un- +"Ž assailable