semblant I. semblantnoun (-s) Etymology: Middle English, from Old French, from present participle of sembler to be like obsolete: semblance; also: pomp, pretense II. sem·blant\ˈsemblənt\adjective Etymology: Middle English, from Middle French, from Old French, present participle of sembler to be like 1.obsolete: like, resembling 2.: seeming, apparent