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English definition of “unassailable”

unassailable

adjective uk   /ˌʌn.əˈseɪ.lə.bəl/ us  
in such a strong position that you cannot be defeated: The result has given the team an unassailable lead. The president looked unassailable with over 60 percent of the vote.Winning and defeatingScoring, winning and losing in sport impossible to doubt or argue with: unassailable logic The conclusions were unassailable.CertaintyConfidence and self-assurance impossible to attack: an unassailable fortressPhysically strong and powerful
(Definition of unassailable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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