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How to Say ‘Annoying / Pain in the neck’ in Japanese

めんどくさい

mendo kusai

[MEN-doh koo-SAI]

💬 Usage Tip: めんどくさい is the slurred everyday form of 面倒くさい (mendōkusai). くさい here doesn't mean "smelly"; it means "reeking of" something, so here it means full of hassle.

Phrase Breakdown

めんど

mendo

[MEN-doh]

trouble; hassle (casual 'mendou')

Shortened, casual pronunciation of mendou, meaning bother or trouble.

Example

宿題、めんどくさいな。

Homework is such a pain.

くさい

kusai

[koo-SAI]

-ish; seeming (lit. smelly)

Suffix from kusai (smelly) meaning 'reeking of'; with mendo it means 'what a pain'.

Example

掃除はめんどくさい。

Cleaning is a hassle.

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