Irrecusable

• (a.) Not liable to exception or rejection.
Found on http://thinkexist.com/dictionary/meaning/irrecusable/

Irrecusable

Ir`re·cu'sa·ble adjective [ Latin irrecusabilis ; prefix ir-- not + recusabilis that should be rejected, from recusare to reject: confer French irrécusable .] Not liable to exception or rejection. Sir W. Hamilton.
Found on http://www.encyclo.co.uk/webster/I/97

irrecusable

that cannot be rejected
Found on http://phrontistery.info/i.html
No exact match found