Adjective

• S: (adj) fluent, fluid, liquid, smooth (smooth and unconstrained in movement) "a long, smooth stride"; "the fluid motion of a cat"; "the liquid grace of a ballerina"
• similar to
• derivationally related form
• antonym
• S: (adj) eloquent, facile, fluent, silver, silver-tongued, smooth-spoken (expressing yourself readily, clearly, effectively) "able to dazzle with his facile tongue"; "silver speech"