Legitimately

Legitimately is an adverb formed from the adjective legitimate. It primarily denotes that something is done in a lawful, proper, or authorized manner, or that it conforms to established rules, standards, or norms. In broader use it can also signal that something is genuine or truly the case, though this sense is often more about authenticity than formal legality.

The word traces to Latin legitimus, meaning lawful or permitted, and entered English via Old French and Middle English. The -ly suffix converts the adjective into an adverb, enabling it to modify verbs, adjectives, or other adverbs: for example, “The contract was legitimately issued” or “She is legitimately proud of her achievement.”

In practical use, legitimately usually appears in formal or careful speech. In legal or administrative contexts, it describes actions, documents, or outcomes that meet official requirements. In everyday usage it emphasizes that a claim or action is fair, authorized, or consistent with rules, rather than merely possible or coincidental. It can also contrast with illegitimately, for actions taken without consent, authority, or justification.

See also: legitimate, legitimacy, legitimate child, illegitimate. Examples: The company legitimately obtained the license; He is legitimately upset about the decision; The plan is legitimately complex.