Non-related

[ri-ley-tid] /rɪˈleɪ tɪd/

adjective
1.
associated; connected.
2.
allied by nature, origin, kinship, marriage, etc.
3.
.
4.
Music. (of tones) belonging to a melodic or harmonic series, so as to be susceptible of close connection.
/rɪˈleɪtɪd/
adjective
1.
connected; associated
2.
connected by kinship or marriage
3.
(in diatonic music) denoting or relating to a key that has notes in common with another key or keys
adj.

“connected by blood or marriage,” 1702, past participle adjective from relate (v.). Related: Relatedness.

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