Dictionary

unassailable

adjective un·as·sail·able \ˌən-ə-ˈsā-lə-bəl\

: not able to be doubted, attacked, or questioned

Full Definition of UNASSAILABLE

:  not assailable :  not liable to doubt, attack, or question <an unassailable argument> <an unassailable alibi>
un·as·sail·abil·i·ty \-ˌsā-lə-ˈbi-lə-tē\ noun
un·as·sail·able·ness \-ˈsā-lə-bəl-nəs\ noun
un·as·sail·ably \-blē\ adverb

Examples of UNASSAILABLE

  1. <one of the unassailable beliefs of that political party>

First Known Use of UNASSAILABLE

1596

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