push against an open door
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English
[edit]Alternative forms
[edit]Pronunciation
[edit]Audio (General Australian): (file)
Verb
[edit]push against an open door (third-person singular simple present pushes against an open door, present participle pushing against an open door, simple past and past participle pushed against an open door)
- (idiomatic) To do something pointless or unnecessary; to try doing something already done.
- Synonyms: preach to the choir, preach to the converted