We found one dictionary that defines the word ought not:

General (1 matching dictionary)

1. ought not: Collins English Dictionary

Phrases: ought not to, more... ▸ Words similar to ought not ▸ Usage examples for ought not ▸ Idioms related to ought not ▸ Wikipedia articles (New!) ▸ Words that often appear near ought not ▸ Rhymes of ought not ▸ Invented words related to ought not