adj
difficult or impossible to understand
　legal documents full of incomprehensible jargon
　I find your attitude quite incomprehensible.
incomprehensible to
　His accent made his speech incomprehensible to me.
>incomprehensiblyadv
>incomprehensibility [ɪn,kɔmprɪhensɪ'bɪlɪti (US) -,kɑːm-/