ultra rare

Almost never found

Ultra rare describes something so scarce it exists in only the smallest quantities—rarer than merely rare.

The term appears in collecting communities for cards, coins, and memorabilia to designate the highest scarcity tier: I pulled an ultra rare from the booster pack.

In gaming, ultra rare items have the lowest drop rates.

The phrase also describes medical conditions affecting extremely few people or steaks cooked barely at all—seared outside, cool and red throughout.

Related

one-of-a-kind · one in a million · collectible · collector's item · limited edition · unicorn · white whale · gem · diamond in the rough · treasure · limited · exotic · priceless · museum piece · elusive · needle in a haystack · extraordinary · exceptional

Categories
Opposites
frequency/commonality

ultra rareubiquitous

Present in all places

commonplace · everywhere · abundant · omnipresent · pervasive

availability/accessibility

ultra raremass-produced

Made in large quantities

a dime a dozen · ten a penny · easy to find · off-the-shelf · garden-variety

accessibility/availability

ultra rareaccessible

Able to be reached

mass-produced · off-the-shelf · in stock · at hand

Family

ultra, rare, ultraviolet, ultrasound, ultramarine, ultrasonic, rarer, rarest, rarely

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G