rarer than hen's teeth
Almost never found
Something rarer than hen's teeth is extremely scarce or nonexistent—hens don't have teeth.
The phrase emphasizes impossibility or near-impossibility: Honest politicians are rarer than hen's teeth.
Often shortened to rare as hen's teeth.
- needle-in-a-haystackProverbially elusive search target
- needle in a haystackExtremely difficult thing to locate
- few and far betweenRarely encountered, widely spaced
- toothlessHaving no teeth
- scarceIn short supply
once in a blue moon · overstatement · infrequent · hyperbole · uncommon · pie-in-the-sky · one-of-a-kind · collector's item · exceptional · hen · unattainable · unique · elusive · precious · holy grail · white whale · beak · unicorn
frequency/abundance
rarer than hen's teethcommonplace
Unremarkable and frequent
a dime a dozen · ubiquitous · everywhere · abundant · plentiful
rarer, rarest, rarely, rareness, rarity, rarefied, rarefy, teeth