We found 2 dictionaries that define the word frown on/upon:

General (2 matching dictionaries)

1. frown on/upon: Merriam-Webster
2. frown on/upon: Oxford Learner's Dictionaries

▸ Words similar to frown on/upon ▸ Usage examples for frown on/upon ▸ Idioms related to frown on/upon ▸ Wikipedia articles (New!) ▸ Words that often appear near frown on/upon ▸ Rhymes of frown on/upon ▸ Invented words related to frown on/upon