unjustifiable
adjective/ˌʌnˌdʒʌstɪˈfaɪəbl/, /ˌʌnˈdʒʌstɪfaɪəbl/
/ˌʌnˌdʒʌstɪˈfaɪəbl/, /ˌʌnˈdʒʌstɪfaɪəbl/
- (of an action) impossible to excuse or accept because there is no good reason for it synonym indefensible
- an unjustifiable delay
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unjustifiable