Uncommon; not frequent; as a rare event; a= rare phenomenon.

Unusually excellent; valuable to a degree seldom found. Rare work, all fill’d with terror and delight. Above the rest I judge one beauty rare.

Thinly scattered.

Thin; porous; not dense; as a rare and attenuate substance. Water is nineteen times lighter and by consequence nineteen times rarer than gold.

Nearly raw; imperfectly roasted or boiled; as rare beef or mutton; eggs roasted rare.