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Ways of saying someone is stupid or silly - thesaurus

Synonyms

grow up

spoken used for telling someone to stop being silly and behaving like a child

don’t encourage someone

used for telling other people that you think that someone is being silly

what is he/she playing at?

used when you think that someone is behaving in a stupid or dishonest way

act/be your age

used for telling someone that they are behaving in a stupid way, as if they were much younger than they really are

someone must be mad (to do something)

used for saying that someone is doing something very stupid, or has done something very stupid

be serious

used for telling someone that you think what they are saying is not sensible

do me/us a favour

used for showing that you think that someone has said or done something silly or annoying

get real

used for telling someone to start considering something in a sensible way and stop being silly or unreasonable about it

(the) more fool you/him/her etc

used for saying that you think someone is doing something stupid

if you believe that, you’ll believe anything

used for telling someone that they are stupid to believe something

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More synonyms

be unfortunate/unlucky/unwise/stupid etc enough to do something

used after adjectives that mean ‘stupid’ or ‘not lucky’ for saying that someone does something stupid or that something bad happens to them

duh

interjection

informal used for saying that you think something that someone has said or done is stupid

go and do something

used for saying that someone has done something silly or annoying

God bless someone

humorous used when you are talking in a friendly way about the silly or wrong things that someone does

hello

interjection

very informal used for saying that you think someone is not being very sensible or is not paying attention to what is happening

the joke is on someone

used for saying that someone who was trying to make you seem silly has made themselves look silly

please

interjection

used for saying that you think someone has said something silly

silly

noun

used for telling someone, especially a child, that you think their behaviour is stupid or annoying

that’s right

used for emphasizing that you think someone is behaving in an unreasonable way

there’s one born every minute

used for saying that someone has been very stupid, especially because they have been tricked into doing something

BuzzWord

hygge

a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

BuzzWord Article

Open Dictionary

sofar

a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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