Synonym: clear, distinct, evident, homely, obvious, ordinary, simple, unattractive, understandable. Antonym: complicated, fanciful. Similar words: explain, complaint, plaintiff, complain about, lain, villain, maintain, claim. Meaning: [pleɪn] 
n. 1. extensive tract of level open land 2. a basic knitting stitch. v. express complaints, discontent, displeasure, or unhappiness. adj. 1. clearly revealed to the mind or the senses or judgment 2. not elaborate or elaborated; simple 3. lacking patterns especially in color 4. not mixed with extraneous elements 5. free from any effort to soften to disguise 6. lacking embellishment or ornamentation 7. lacking in physical beauty or proportion. adv. unmistakably (`plain' is often used informally for `plainly').
n. 1. extensive tract of level open land 2. a basic knitting stitch. v. express complaints, discontent, displeasure, or unhappiness. adj. 1. clearly revealed to the mind or the senses or judgment 2. not elaborate or elaborated; simple 3. lacking patterns especially in color 4. not mixed with extraneous elements 5. free from any effort to soften to disguise 6. lacking embellishment or ornamentation 7. lacking in physical beauty or proportion. adv. unmistakably (`plain' is often used informally for `plainly'). 
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91. The food was fairly plain, but well cooked.
92. The food was plain but well prepared.
93. He was attired in a plain, mud-flecked uniform.
94. The reason is perfectly plain.
95. The grassy plain gave way to an extensive swamp.
96. Do you prefer plain or striped shirts?
97. The glasses are plain without looking cheap.
98. That was just plain stupid!
99. Why can't they write these instructions in plain English?
100. Let's have some plain, truthful answers.
101. The book arrived in a plain brown wrapper.
102. Cattle move freely across the grassy plain.
103. Don't leave your valuables in plain sight.
104. I'll tell you everything in plain words.
105. I don't know, and that's the plain truth .
106. Salisbury Plain was known anciently as Ellendune.
107. Knit two plain, two purl.
108. She was wearing a plain black sheath.
109. It is all quite plain to me.Sentencedict.com
110. The interior of the church was plain and simple.
111. The detectives were in plain clothes.
112. He was plain about this.
113. When it comes to plain speaking, she has few equals.
114. They made it plain that they were against the idea.
115. He's made it plain that he loves the game and wants to be involved still.
116. You can often choose between plain white or coloured and patterned scarves.
117. Don't use all that technical lingo try and explain in plain English.
118. Once the design problems were solved, it was all/everything was plain sailing.
119. It is plain to see we will not have anything to eat yet again.
120. Three officers in plain clothes told me to get out of the car.
More similar words: explain, complaint, plaintiff, complain about, lain, villain, maintain, claim, flair, malaise, reclaim, acclaim, proclaim, proclaimed, clairvoyant, laissez-faire, clairvoyance, laissez faire, plan, play, place, plate, plant, player, placid, planet, play off, plasma, plague, playoff.