rarer than hens' teeth
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Synonym of rare as hen's teeth.
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “rarer than hens' teeth” mean?
Synonym of rare as hen's teeth.
Is “rarer than hens' teeth” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.