Mealy-mouthed

(a.) Using soft words; unwilling to tell the truth in plain language.

Thesaurus Entries

ambiguous, artful, circumlocutory, deceitful, equivocal, equivocating, euphemistic, hesitant, hypocritical, indirect, mincing, oily, periphrastic, reluctant, reticent, roundabout, slick, unctuous, vague