not frequent; not occurring regularly or at short intervals
frequent, prevalent, steady, prevailing, dominant, rife, regular, predominant
English Synonyms and Antonyms
Unique is alone of its kind; rare is infrequent of its kind; great poems are rare; "Paradise Lost" is unique. To say of a thing that it is rare is simply to affirm that it is now seldom found, whether previously common or not; as, a rare old book; a rare word; to call a thing scarce implies that it was at some time more plenty, as when we say food or money is scarce. A particular fruit or coin may be rare; scarce applies to demand and use, and almost always to concrete things; to speak of virtue, genius, or heroism as scarce would be somewhat ludicrous. Rare has the added sense of precious, which is sometimes, but not necessarily, blended with that above given; as, a rare gem. Extraordinary, signifying greatly beyond the ordinary, is a neutral word, capable of a high and good sense or of an invidious, opprobrious, or contemptuous signification; as, extraordinary genius; extraordinary wickedness; an extraordinary assumption of power; extraordinary antics; an extraordinary statement is incredible without overwhelming proof.
See synonyms for GENERAL; NORMAL; USUAL.
curious, extraordinary, incomparable, odd, peculiar, precious, rare, remarkable, scarce, singular, strange, uncommon, unique, unparalleled, unprecedented, unusual
Dictionary of English Synonymes
uncommon, rare, unfrequent
PPDB, the paraphrase database
List of paraphrases:
uncommon, rare, occasional, frequent, scarce, casual