frown on (third-person singular simple present frowns on, present participle frowning on, simple past and past participle frowned on)
- Used other than as an idiom: see frown, on.
- Susan doesn't like Mondays, so every week she frowns on Monday morning.
- (figuratively) To disapprove of (something or someone, often a behavior); to express disapproval of (something or someone).
- Coach frowns on smoking, even in the off-season.