• (a.) Not relevant; not applicable or pertinent; not bearing upon or serving to support; foreign; extraneous; as, testimony or arguments irrelevant to a case. Found on http://thinkexist.com/dictionary/meaning/irrelavant/
Ir·rel'a·vant adjective Not relevant; not applicable or pertinent; not bearing upon or serving to support; foreign; extraneous; as, testimony or arguments irrelevant to a case. -- Ir*rel'a*vant*ly , adverb Found on http://www.encyclo.co.uk/webster/I/98