Lacking a logical or causal relation.

Roget 10: irrelative^†, irrespective, unrelated; arbitrary; independent, unallied; unconnected, disconnected; adrift, isolated, insular; extraneous, strange, alien, foreign, outlandish, exotic.    not comparable, incommensurable, heterogeneous; unconformable etc. 83.    irrelevant, inapplicable; not pertinent, not to the, purpose; impertinent, inapposite, beside the mark, a propos de bottes [Fr.]; aside from the purpose, away from the purpose, foreign to the purpose, beside the purpose, beside the question, beside the transaction, beside the point; misplaced etc. (intrusive) 24; traveling out of the record.    remote, far-fetched, out of the way, forced, neither here nor there, quite another thing; detached, segregate; disquiparant^†.    multifarious; discordant etc. 24.    incidental, parenthetical, obiter dicta, episodic.    ... show more

Roget 81: polymorphous, multiform, multifold, multifarious, multigenerous^†, multiplex; heterogeneous, diversified, dissimilar, various, varied, variform^†; manifold, many-sided; variegated, motley, mosaic; epicene, indiscriminate, desultory, irregular; mixed, different, assorted, mingled, odd, diverse, divers; all manner of, of every description, of all sorts and kinds, et hoc genus omne [Lat.]; and what not;? de omnibus rebus et quibusdam aliis [Lat.].    jumbled, confused, mixed up, discordant; inharmonious, unmatched, unrelated, nonuniform.    omniform^†, omnigenous^†, omnifarious^†; protean (form) 240.    ... show more

Not connected by kinship.