Difference between Uncommon and Rare

UNCOMMON vs RARE: ADJECTIVE

Marked by an uncommon quality; especially superlative or extreme of its kind
Not common; rare.
Wonderful; remarkable.
Not common or ordinarily encountered; unusually great in amount or remarkable in character or kind
Not common; unusual; infrequent; rare; hence, remarkable; strange
Rare; not readily found; unusual
Remarkable; exceptional

Marked by an uncommon quality; especially superlative or extreme of its kind
Having low density
Not widely distributed
Not widely known; especially valued for its uncommonness
Recurring only at long intervals
Infrequently occurring; uncommon.
Excellent; extraordinary.
Thin in density; rarefied.
Cooked just a short time so as to retain juice and redness.
Thin; of low density
Very uncommon; scarce.
Cooked very lightly, so the meat is still red (in the case of steak or beef in the general sense).
Characterized by wide separation of parts; of loose texture; not thick or dense; thin.
Thinly scattered; dispersed.
Of an uncommon nature; unusually excellent; valuable to a degree seldom found.
Not frequent; seldom met with or occurring; unusual.
Nearly raw; partially cooked; not thoroughly cooked; underdone.
(of meat) cooked a short time; still red inside

Not common; not usual; infrequent; rare; hence, remarkable; extraordinary; strange.
Synonyms Scarce, unusual, unwonted, unique, singular, queer. See common.
Exceedingly; very: as, uncommon cheap.
Marked by an uncommon quality

Early.
Not thoroughly cooked; partly cooked; underdone: applied to meat: as, rare beef; a rare chop.
A dialectal form of rear.
An obsolete form of roar.
Thin; porous; not dense; of slight consistence; rarefied; having relatively little matter in a given volume: as, a rare substance; the rare atmosphere of high mountains.
Thinly scattered; coming or occurring at wide intervals; sparse; dispersed.
Very uncommon or infrequent; seldom occurring or to be found; hardly ever met with.
Hence Remarkable from uncommonness; especially, uncommonly good, excellent, valuable, fine, or the like; of an excellence seldom met with.
Synonyms Rare, Scarce, infrequent, unusual. Rare implies that only few of the kind exist: as, perfect diamonds are rare. Scarce properly implies a previous or usual condition of greater abundance. Rare, means that there are much fewer of a kind to be found than may be found where scarce would apply.
Singular, extraordinary, incomparable, choice.
(of meat) cooked a short time
Marked by an uncommon quality
Not widely known
Still red inside

Common, Rarely, Surprising, Prevalent, Infrequent, Commonplace, Unheard, Special, Unwonted, Especial, Particular, Exceptional, Extraordinary, Rare, Unusual

Seldom, Remarkable, Atypical, Rarely, Unheard, Unusual, Rarity, Thin, Raw, Rarefied, Scarce, Rarified, Extraordinary, Infrequent, Uncommon

Common, Rarely, Surprising, Prevalent, Infrequent, Commonplace, Unheard, Special, Unwonted, Especial, Particular, Exceptional, Extraordinary, Rare, Unusual

Seldom, Remarkable, Atypical, Rarely, Unheard, Unusual, Rarity, Thin, Raw, Rarefied, Scarce, Rarified, Extraordinary, Infrequent, Uncommon

They exceeded expectations, which is rare these days.
Practical Methods for Sampling Rare and Mobile Populations.
This is an optional step, and is generally only used if your card is an ultra rare, a rare holo or a promo.
Rare Fish Tracker helps you keep track of the rare fish you have caught in your pursuit of fishing achievements.
Bipolar disorder is extremely rare in children, and although it can begin in adolescence, this is also rare.
The Drum Broker has launched Rare Rhythm Paints, a sample pack featuirng a collection of original and rare percussion samples by Dougles Fitch.
Rare birds: A few rare bird species were mapped using data supplied by MD DNR from their Ecologically Significant Areas database.
Nicely rare or medium rare, they are moved to rest and the pan deglazed with red wine.
Rare Coin Investments for decades has consistently offered better quality in rare coins.
Other symptoms may be rare or very rare.