Unrelated

Adjective

 * 1) not connected or associated
 * The holiday started with two unrelated mishaps.
 * 1) not related by kinship
 * He had the same surname as me, but we were unrelated.

Thesaurus
alien, apart, detached, different, disconnected, discrete, disjunct, disrelated, dissimilar, dissociated, distinct, exotic, extraneous, foreign, inappropriate, incommensurable, incomparable, incompatible, independent, insular, irrelative, isolated, other, outlandish, removed, segregate, separate, separated, strange, unaffiliated, unallied, unassociated, unconnected, unlinked, unrelatable

Anagrams

 * unaltered