Mealy-mouthed and Smooth-tongued

Mealy-mouthed adjective - Hesitant to state facts or opinions simply and directly as from e.g. timidity or hypocrisy.

Smooth-tongued and mealy-mouthed are semantically related. In some cases you can use "Smooth-tongued" instead an adjective phrase "Mealy-mouthed".

Smooth-tongued adjective - Artfully persuasive in speech.

Mealy-mouthed and smooth-tongued are semantically related. Sometimes you can use "Mealy-mouthed" instead an adjective phrase "Smooth-tongued".