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.