- plain1 [ pleın ] adjective **1. ) easily seen or understood:Hugh's message was short, but the meaning was plain enough.it is plain (that): It was plain that they knew each other already.it is plain to someone (that): It was plain to everyone that Maude was not happy.make it plain: Teresa made it plain that she would not help Robert any more.be plain to see: Her disappointment was plain to see.a ) (as) plain as day/(as) plain as the nose on your face INFORMAL very obviousb ) make something plain/make yourself plain to say something so that it is obvious what you mean:Thomas made plain his concerns about the changes introduced at work.c ) plain and simple used for emphasizing that something is completely true and cannot be described as anything else:It was cheating, plain and simple.The project has been beset by plain and simple managerial incompetence.2. ) simple in design, with no decoration:a plain wooden tableThe flower gardens were fairly plain, with few plants.a plain white T-shirtWe sell a selection of plain and patterned ties.a ) plain food is simple and does not have a lot of things added to it:a plain hamburgerplain yogurtThe restaurant serves plain wholesome food.b ) not very attractive:He seems to be attracted to plain quiet women.c ) only before noun used before a name for saying that someone does not have a special title or name:It's just plain Mr. Cunningham now, no need to call me Doctor.3. ) expressing what you think honestly, using simple, direct language:a plain answerplain speaking/talking: She was admired for her plain speaking.a ) plain English/language/wording language that is easy to understand because it does not use difficult or technical words:There have been demands for the tax forms to be rewritten in plain English.b ) the plain fact/truth is SPOKEN used for saying what you think is true even if it offends someone:The plain fact is that he is not doing his job very well.plain oldnot at all unusual, interesting, or special:The recipe is nothing special you just use plain old hamburger and some onion powder.plain old common senseplain stupidity/luck etc.used for emphasizing that something is very stupid/lucky, etc.:It was plain stupidity to think they could get away with a crime like that.╾ plain|ness noun uncountplainplain 2 [ pleın ] noun count **plain or plains a large flat area of land:the vast plains in the central states of the U.S.the Serengeti Plains in East Africaplainplain 3 [ pleın ] adverb *used for emphasizing that someone or something has a particular negative quality:It was just plain stupid of him to get involved.That's just plain crazy!
Usage of the words and phrases in modern English. 2013.