glower, glare -- (look at with a fixed gaze; "The girl glared at the man who tried to make a pass at her")
frown, glower, lour, lower -- (look angry or sullen, wrinkle one's forehead, as if to signal disapproval)
Overview of adj glowering
The adj glowering has 1 sense
dark, dour, glowering, glum, moody, morose, saturnine, sour, sullen -- (showing a brooding ill humor; "a dark scowl"; "the proverbially dour New England Puritan"; "a glum, hopeless shrug"; "he sat in moody silence"; "a morose and unsociable manner"; "a saturnine, almost misanthropic young genius"- Bruce Bliven; "a sour temper"; "a sullen crowd")