Another word for rare
sparse, few, scanty, meager, limited, short, expensive, precious, out of circulation, off the market, in great demand, occasional, uncommon, isolated, scattered, infrequent, deficient, almost unobtainable, few and far between*; see also unique 1.
Not completely cooked
Another word for rareadjective
Rarely occurring or appearing:infrequent, occasional, scarce, sporadic, uncommon, unusual. Idiom: few and far between. See usual
Far beyond what is usual, normal, or customary:exceptional, extraordinary, magnificent, outstanding, preeminent, remarkable, singular, towering, uncommon, unusual. (Informal) standout. (Slang) awesome, out of sight. See better, usual
Marked by great diffusion of component particles:rarefied, thin. See tighten