Synonym: asinine, dense, dull, foolish, silly, unintelligent. Antonym: bright. Similar words: jupiter, preoccupied, rapid, rapidly, insipid, epidemic, trepidation, dilapidated. Meaning: ['stuːpɪd /-tju-] 
n. a person who is not very bright. adj. 1. lacking or marked by lack of intellectual acuity 2. in a state of mental numbness especially as resulting from shock 3. lacking intelligence.
n. a person who is not very bright. adj. 1. lacking or marked by lack of intellectual acuity 2. in a state of mental numbness especially as resulting from shock 3. lacking intelligence. 
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121. He'll manage-he isn't stupid.
122. I'm not entirely stupid. I checked the train times before we came out.
123. We shrieked with laughter when we realized how stupid we'd been.
124. He's got to pander to the vulgar and stupid audiences.
125. She wanted to cry out to him not to be so stupid.
126. Did you honestly believe that I'd be stupid enough to do that?
127. Many of us do stupid things in our youth, but we should have the good grace to admit them.
128. I know I was stupid; you don't have to rub it in.
129. He pulled my argument apart and made me feel very stupid.
130. She felt cheap and stupid, like a naughty child caught stealing.
131. Her deprecating smile clearly showed that she thought I'd said something stupid.
132. She felt so stupid. She'd never be able to live it down.
133. He cheerfully blows away any bad guy stupid enough to get in his line of fire.
134. I couldn't do it, and it made me feel stupid.
135. I wish he wouldn't keep coming in with his stupid suggestions.
136. I have neither the time nor the inclination to play stupid games!
137. I thought John was being uncommonly stupid, and wrote his down as a fool.
138. I'm sorry! That was a stupid thing to say - I don't know what came over me.
139. I won't mince matters: I think it's a stupid idea.
140. I've locked myself out. Of all the stupid things to do!
141. It's incredible that Peter can behave with such stupid lack of feeling.
142. She'd better shut her mouth and from now on think twice before saying stupid things.
143. She told me it was brand new and I was stupid enough to believe her.
144. "It would be stupid to attempt the journey in the dark." "Precisely,(sentencedict.com) " he answered.
145. You've done some stupid things before, but this really takes the biscuit!
146. How could you be so stupid as to believe him?
147. I can't believe Kate was stupid enough to get involved in this.
148. I hate doing this stupid exercise, I just can't get it right.
149. Getting off the bus while it was moving was a darn stupid thing to do.
150. Do they really think we are stupid enough to swallow that?