Voluble means speaking easily and at great length. A voluble speaker, voluble in his praise, voluble and charming.
It is neutral to mildly critical — the fluency is granted and the length is the doubt. It describes the manner rather than the content. The Latin volvere means to roll, which is also behind revolve and volume, and the image is of words rolling out.
1adjectivevolubleSpeaking easily and at great length.
“Our voluble neighbour can talk for an hour about her garden without a pause.”
voluble is a quality of speech.
Latin volubilis means rolling, from volvere, to roll. Revolve and volume come from the same rolling.
Latin
volūbilis — rolling
Middle French
volubile
English, today
voluble
Built from
From Middle French volubile, from Latin volūbilis (“rolling”), from volvō (“roll”).
Etymology from Wiktionary, CC BY-SA