Proper  adj. 1 a accurate, correct (gave him the proper amount). B fit, suitable, right (at the proper time). 2 decent; respectable, esp. Excessively so (not quite proper). 3 (usu. Foll. By to) belonging or relating (respect proper to them). 4 (usu. Placed after the noun) strictly so called; genuine (this is the crypt, not the cathedral proper). 5 colloq. Thorough; complete (a proper row). [latin proprius one's own]