adj. 1 a of or like an island. b separated or remote, like an island. 2 ignorant of or indifferent to cultures, peoples, etc., outside one's own experience; narrow-minded. 3 of a British variant of Latin handwriting current in the Middle Ages. 4 (of climate) equable. insularism n. insularity n. insularly adv.
[ LL insularis (as INSULATE) ]