Antonym: faltering. Similar words: effluent, influential, influence, frequent, eloquent, subsequent, frequently, subsequently. Meaning: [fluːənt] 
adj. 1. smooth and unconstrained in movement 2. expressing yourself readily, clearly, effectively.
adj. 1. smooth and unconstrained in movement 2. expressing yourself readily, clearly, effectively. 
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1 She is fluent in five languages.
2 'Can he speak German?' 'Yes, he's fluent.'
3 She was fluent in English, French, and German.
4 He is fluent in five languages.
5 He can speak fluent English.
6 He speaks fluent Japanese.
7 She studied eight foreign languages but is fluent in only six of them.
8 She's fluent in French.
9 Our tour leaders are all fluent in English.
10 He spoke in fluent Italian.
11 She rose with the fluent movement of an athlete.
12 He's a fluent Russian speaker.
13 It happened/chanced that she spoke fluent Swahili.
14 She happened/chanced to speak fluent Swahili.
15 He was a fluent and rapid prose writer.
16 My father speaks fluent English.
17 He's a fluent Arabic speaker.
18 She was fluent in German,(www.Sentencedict.com) Urdu and Swahili.
19 She speaks fluent and idiomatic French.
20 He is fluent in a dozen foreign languages.
21 She speaks fluent though not very correct French.
22 She speaks fluent and idiomatic English.
23 He is a fluent speaker of Hebrew.
24 Long practice enabled that American to speak fluent Chinese.
25 It is doubtful whether Tweed, even with his fluent French, passed for one of the locals.
26 The successful candidate will be fluent in French and German.
27 It takes constant effort to become fluent in a language.
28 She's fluent in French and English and has a working knowledge of Spanish.
29 I would always be an outsider here - no matter that I spoke fluent Spanish.
30 He knows quite a lot of French, but he's at an in-between stage and not fluent yet.
More similar words: effluent, influential, influence, frequent, eloquent, subsequent, frequently, subsequently, consequently, fluid, blue, clue, value, superfluity, superfluous, entailment, entertainment, sentiment, blueberry, a blue moon, sequence, frequency, eloquence, consequence, in consequence, tent, Cent., rent, entry, event.