Not relenting; not yielding in strength, severity, or determination. / Having no pity; not being or becoming lenient, mild, gentle, or merciful

not connected or associated / not related by kinship

Not relative to something else; absolute.

present participle of unrelate

(transitive) To remove from being in relation to something; to dissociate.

Third-person singular simple present indicative form of unrelate

plural of unrelation

Lack or absence of relation

Not relational.

In an unrelenting manner; rigidly; cruelly.