Ir*rel"a*tive (?), a.
Not relative; without mutual relations; unconnected.
--
Ir*rel"a*tive*ly, adv.
Irrelative chords Mus., those having no common tone. -- Irrelative repetition Biol., the multiplication of parts that serve for a common purpose, but have no mutual dependence or connection.
Owen.
© Webster 1913.