under your breath

under (one's) breath

Of speaking, very softly or indistinctly, especially so that one's words can only be heard or understood by oneself. "You'll get what's coming to you one of these days," Janet muttered under her breath. Quit speaking under your breath like that, Steven. Speak up so that I can hear what you're saying!
See also: breath

under your breath

in a very quiet voice; almost inaudibly.
See also: breath

under your ˈbreath

in a whisper (= a low voice), so that others cannot hear: He muttered something under his breath. OPPOSITE: out loud
See also: breath