3. An important enterprise, implying a change of place; especially, a warlike enterprise; a march or a voyage with martial intentions; an excursion by a body of persons for a valuable end; as, a military, naval, exploring, or scientific expedition; also, the body of persons making such excursion. The expedition miserably failed. Prescott. Narrative of the exploring expedition to the Rocky Mountains. J. C. Fremont.

EXPEDITIONARY
Ex`pe*di"tion*a*ry, a.

Defn: Of or pertaining to an expedition; as, an expeditionary force.

EXPEDITIONIST
Ex`pe*di"tion*ist, n.

Defn: One who goes upon an expedition. [R].

EXPEDITIOUS
Ex`pe*di"tious, a.

Defn: Possessed of, or characterized by, expedition, or efficiency and rapidity in action; performed with, or acting with, expedition; quick; having celerity; speedily; as, an expeditious march or messenger. — Ex`pe*di"tious*ly, adv. — Ex`pe*di"tious*ness, n.

Syn.
— Prompt; ready; speedy; alert. See Prompt.

EXPEDITIVE
Ex*ped"i*tive, a. Etym: [Cf. F. expéditif.]

Defn: Performing with speed. [Obs.] Bacon.