fluent

Adjective

Synonyms: fluid liquid smooth eloquent facile silver silver-tongued smooth-spoken

WordNet 3.0

Adjective (2)

smooth and unconstrained in movement“a long, smooth stride”“the fluid motion of a cat”“the liquid grace of a ballerina”Synonyms: fluid liquid smooth
expressing yourself readily, clearly, effectively“able to dazzle with his facile tongue”“silver speech”Synonyms: eloquent facile silver silver-tongued smooth-spoken

Webster's Dictionary (GCIDE)

Fluent \Flu"ent\, a. [L. fluens, -entis, p. pr. of fluere to flow; cf. Gr. ? to boil over. Cf. Fluctuate, Flux.]

1.Flowing or capable of flowing; liquid; glodding; easily moving. [1913 Webster]

2.Ready in the use of words; voluble; copious; having words at command; and uttering them with facility and smoothness; as, a fluent speaker; hence, flowing; voluble; smooth; -- said of language; as, fluent speech. [1913 Webster]

With most fluent utterance.— Denham.[1913 Webster]

Fluent as the flight of a swallow is the sultan's letter.— De Quincey.[1913 Webster]

Fluent \Flu"ent\, n.

1.A current of water; a stream. [Obs.] [1913 Webster]

2.[Cf. F. fluente.] (Math.) A variable quantity, considered as increasing or diminishing; -- called, in the modern calculus, the function or integral. [1913 Webster]