Islamofascist adjective 1noun 1forms 3 adjective1 •(US, offensive) Of or pertaining to Islamofascism noun1 •A Muslim fundamentalist.So it is with the highly ideological term "Islamofascist," a label that is being wielded as a blunt weapon in a left-right debate and has been carelessly bandied about by some presidential candidates. — 2007 formsIslamofascists · more Islamofascist · most Islamofascist