conclusively

Conclusively is an adverb that describes doing something in a way that settles a matter beyond doubt or with decisive finality. It is commonly used with verbs of proving, demonstrating, or establishing, and often appears in formal or analytical writing. Typical collocations include conclusively prove, conclusively show, and conclusively established.

Etymology and form: Conclusively is formed from the adjective conclusive, with the standard English adverbial suffix -ly. The adjective conclusive derives from the Latin concludere, meaning to shut up or end; over time this sense extended to imply something that ends doubt or dispute. The adverb retains this sense of finality.

Usage notes: Using conclusively signals a high degree of certainty about a result or finding. It is most appropriate when evidence or reasoning is considered sufficient to close the matter. Some style guides advise caution against overuse, as claims framed as conclusive may be unrealistic in complex or uncertain contexts. In scientific or legal writing, “conclusively” should be supported by robust data or procedure; otherwise, it can appear as an overstatement.

Pronunciation: commonly pronounced /kənˈkluːsɪvli/ (kən-KLOO-sihv-lee).

Examples:

- The DNA analysis conclusively identified the suspect.

- The study's results conclusively support the hypothesis.

- The committee concluded the matter, and the findings were deemed conclusively satisfactory.

See also: conclusive, conclusiveness, conclude, conclusion.