a. Not refragable; not to be gainsaid or denied; not to be refuted or overthrown; unanswerable; incontestable; undeniable; as, an irrefragable argument; irrefragable evidence.
a. 不能反驳的, 不能否定的, 不可争辩的[法] 不能反驳的, 不可争辩的, 不能否认的