Not related to or concerned with the thing or person being considered; of a different nature or character; strange, unfamiliar, alien. Frequently…

Not pertinent; irrelevant (to). Formerly: spec. †inappropriate, unfit (obsolete).

Irrelevant to (or †unto) a subject or matter. Chiefly in predicative use. Often with non-referential it as subject.

Foreign; outlandish, strange; imported from abroad. Also occasionally: extraneous to the matter in hand. Now somewhat rare.

= far-fetched, adj. 2.

Leaving a specified track; deviating from a specified rule or principle. Of remarks, discussions, etc.: Wandering from the subject, irrelevant. Obs…

= irrelevant, adj.

Irrelevant, unsuitable, extraordinary: = extravagant, adj. 4–6.

= foreign, adj. 2a.

Inapplicable.

That is not pertinent to the case or matter in hand; that does not apply; irrelevant. Now chiefly Law, esp. of evidence. In later use chiefly…

Of an argument, notion, simile, etc.: Studiously sought out; not easily or naturally introduced; strained.

Wrongly or improperly devoted.

(un-, prefix1 affix 4.)

Having no relation to or bearing on the matter in hand; irrelevant.

Not apposite, not to the point, out of place; impertinent.

Not concerned or involved, having no part or share, in something.

Of a statement, etc.: Not pertinent to the case, irrelevant.

(un-, prefix1 affix 1.)

Not relevant or pertinent to the case; not to the purpose; that does not apply: said originally of evidence or arguments.

figurative. ‘Flying off at a tangent’ (see B. 1c); divergent, erratic.

Not appertinent; impertinent.

= inappropriate, adj.

figurative. Going off suddenly ‘at a tangent’; erratic; divergent; digressive.