adj. & n.
adj. 1 (esp. of friends) unable or unwilling to be separated. 2 Gram. (of a prefix, or a verb in respect of it) unable to be used as a separate word, e.g.: dis-, mis-, un-.
n. (usu. in pl.) an inseparable person or thing, esp. a friend. inseparability n. inseparably adv.
[ ME f. L inseparabilis (as IN-(1), SEPARABLE) ]