Akademik

smooth-spoken
adjective
expressing yourself readily, clearly, effectively
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able to dazzle with his facile tongue

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silver speech

Syn: ↑eloquent, ↑facile, ↑fluent, ↑silver, ↑silver-tongued
Similar to: ↑articulate
Derivationally related forms: ↑fluency (for: ↑fluent), ↑facility (for: ↑facile), ↑eloquence (for: ↑eloquent), ↑elocute (for: ↑eloquent)

Useful english dictionary. 2012.