Irrespective

Irrespective is an English word that expresses "without regard to" or "regardless of." It functions as an adjective and, more commonly, as part of the prepositional phrase "irrespective of" to introduce a factor that is not taken into account. The term is typically used in formal or semi-formal writing and is understood in both British and American English, though "regardless of" is more common in everyday speech.

Etymology: Irrespective derives from the prefix ir- (a negation form related to in-) attached to respect (from Latin respectus, "a regard"). The sense "not taking into account" developed in English and is now a standard formulation in policy, law, and formal prose.

Usage notes: Because it carries a formal tone, it is often avoided in casual speech. It can modify a general statement or introduce a list of factors, as in "The decision will be made irrespective of age, gender, or nationality." In American English, "regardless of" is usually preferred for everyday writing, whereas "irrespective of" is common in British usage and in legal or official contexts.

Related terms include regardless, notwithstanding, and without regard to. Irrespective emphasizes the lack of consideration for a specified factor, and its correct construction is typically "irrespective of [noun or noun phrase]."