Antonym: serious. Similar words: sunny, tunnel, runner, cunning, fun, fund, refund, funeral. Meaning: ['fʌnɪ] 
n. an account of an amusing incident (usually with a punch line). adj. 1. arousing or provoking laughter 2. beyond or deviating from the usual or expected 3. not as expected 4. experiencing odd bodily sensations.
n. an account of an amusing incident (usually with a punch line). adj. 1. arousing or provoking laughter 2. beyond or deviating from the usual or expected 3. not as expected 4. experiencing odd bodily sensations. 
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121. I want none of your funny business.
122. The book is, by turns, funny and very sad.
123. It is not a wildly funny play.
124. His very funny joke soon conjured my anger away.
125. He looked funny stomping round the dance floor.
126. He's always punning and I don't find it funny.
127. You should have seen it—it was terribly funny!
128. If you try any funny business you'll be sorry.
128. Sentencedict.com is a sentence dictionary, on which you can find good sentences for a large number of words.
129. That Dave's a funny chap, isn't he?
130. His funny remarks lightened the atmosphere.
131. Remember, Marvin, no funny business while we're out.
132. Funny how religion is creeping into the environmental debate.
133. I thought the skit on politicians was really funny.
134. We laughed dutifully at all his jokes, even the ones that weren't funny.
135. People tell me I ran the greatest race of my life, but the funny thing is I can't remember much about it.
136. The funny thing is that the rest of us have known that for years.
137. She sounded a bit funny with me on the phone last night and I wondered if I'd offended her.
138. She made a funny face and gave a snorting of laugh.
139. He ended off his speech by telling a very funny joke.
140. Fortunately, Julie saw the funny side when I spilled coffee on her.
141. His latest movie is a shocker but it's also hilariously funny at times.
142. The story was so funny that we were all in convulsions.
143. I've heard something very funny and I'll let you in on it after class.
144. It seems to me that there is something funny about the case.
145. I'm pleased I didn't get that job, in a funny sort of way.
146. I don't find him funny at all. Quite the contrary.
147. Some of the things he comes out with are so funny!
148. The young lady was kitted up in a funny dress last evening.
149. After his wife died he went a bit funny .
150. The old professor used to digress from his subject for a moment to tell his students a funny story.
More similar words: sunny, tunnel, runner, cunning, fun, fund, refund, funeral, funding, defunct, function, fungible, make fun of, functional, and function, malfunction, fundamental.