Synonyms of rarer

1 Syllable
light, short, few, thin
2 Syllables
scanty, scarce, flimsy, recherché, strange, sparse, subtle, seldom, tenuous
3 Syllables
subtile, unwonted, sporadic, singular, limited, deficient, unfrequent, rarefied, scattered, unique, unusual, uncommon
4 Syllables
occasional, unthinkable, attenuate, isolated, unlikely, attenuated
5 Syllables
semioccasional, extraordinary, inconceivable
6 Syllables
unimaginable