Definition of unshakable
: not possible to weaken or get rid of : not able to be shaken <an unshakable habit> <unshakable determination/opposition>
unshakablyplay \ˌən-ˈshā-kə-blē\ adverb <Switzerland is as unshakably opposed to sanctions as ever: neutrality, the Swiss claim, requires it. — The Economist>
First Known Use of unshakable
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