Cool MateLunatic
UK //ˈluː.nə.tɪk//US //ˈluː.nə.tɪk//
Definition
A person who is considered insane or wildly irrational.
In simple words: A person who is crazy or behaves very strangely.
Examples
- The scientist was called a lunatic for his bizarre theories.
- He acted like a lunatic when he found out he won the lottery.
- Some people believe that the full moon drives lunatics to behave strangely.
- You can't call someone a lunatic just because they have different opinions.
- Her friend warned her, 'Don't let that lunatic near your car!'
Usage notes
Often used in a derogatory way to describe someone perceived as irrational or mentally unstable. Be cautious of context; using 'lunatic' may offend some.
Grammar pattern
standalone noun
Memory hint
Think of a 'moon' that makes people act crazy. 'Luna' means 'moon' in Latin.
Collocations
- crazy lunatic
- dangerous lunatic
- mad lunatic
Synonyms
- crazy person
- madman
- insane person
- fool
- maniac
Antonyms
- sane
- rational
- reasonable
Common mistakes
- Using 'lunatic' to describe someone without mental illness.
- Confusing with 'maniac', which has a slightly different meaning.
- Overusing in serious contexts where a more respectful term is appropriate.