From un- + irritable. <span class="searchmatch">unirritable</span> (comparative more <span class="searchmatch">unirritable</span>, superlative most <span class="searchmatch">unirritable</span>) Not irritable; good-tempered. (archaic, biology) Not responsive...
irritable male syndrome irritableness irritably nonirritable superirritable <span class="searchmatch">unirritable</span> capable of being irritated easily exasperated or excited responsive to...