n. 25B6; adjective
they issue books in the normal way : USUAL, standard, ordinary, customary, conventional, habitual, accustomed, expected; typical, stock, common, everyday, regular, routine, established, set, fixed, traditional; poetic/literary wonted.
a normal couple : ORDINARY, average, typical, run-of-the-mill, middle-of-the-road, common, conventional, mainstream, unremarkable, unexceptional; N. Amer. garden-variety; informal bog-standard, a dime a dozen; Brit. informal common or garden; N. Amer. informal ornery.
the man was not normal : SANE, in one's right mind, right in the head, of sound mind, compos mentis, lucid, rational, coherent; informal all there.
unusual, insane.