うざい
うざい
uzai
= annoying / irritating / a pain / creepy-persistent
うざい (uzai) is one of the most expressive words in Japanese casual speech for annoyance — sharper than ‘bothersome,’ more visceral than ‘irritating,’ it captures the feeling of something being genuinely, obnoxiously in the way.
Uzai is an i-adjective expressing strong annoyance or irritation — the feeling that something or someone is persistently, unbearably bothersome. It is stronger than 面倒くさい (mendoukusai, troublesome) and more targeted than うるさい (urusai, noisy/annoying). Uzai can describe a person who won’t leave you alone, a task that keeps piling up, an app notification that won’t stop, or any situation that grinds on your nerves. The word has a slightly dismissive or contemptuous edge — using it about a person is a strong expression of frustration.
Uzai is casual and can sound harsh if directed at a person — it carries more edge than ‘annoying’ in English. Between close friends it is used freely, but saying it to someone older or in a formal context would be rude. The adverb form is うざく (uzaku): うざく絡んでくる (uzaku karande kuru — to persistently bother someone in an annoying way). On social media, うざ (uza, without the い) is a common abbreviated form.
Everyday use
最近、広告がうざくて困る。
Saikin, koukoku ga uzakute komaru.
The ads have been so annoying lately.
Casual / Social Media
既読スルーしてるのにまだ送ってくる…うざすぎ
Kidoku suru shiteru no ni mada okutte kuru… uza sugi
I’ve been leaving them on read and they’re still sending messages… so annoying
Formal / Cultural context
若者言葉として定着した「うざい」は、対人関係における不満や嫌悪感を端的に表す表現として広く使われている。
Wakamono kotoba toshite teichaku shita ‘uzai’ wa, taijin kankei ni okeru fuman ya ken-okan wo tanten ni arawasu hyougen toshite hiroku tsukawarete iru.
Having established itself as youth slang, ‘uzai’ is widely used as a concise expression of dissatisfaction or aversion in interpersonal situations.
Uzai became widely used in Japanese youth culture in the 1990s, spreading through school environments and eventually entering mainstream media. The word fills a specific emotional niche: it combines persistent annoyance with a sense that the source of irritation has no self-awareness. A loud stranger on the train is うるさい (urusai — noisy); a classmate who keeps following you and asking unwanted questions is うざい — the difference is that uzai implies the target is being specifically, repeatedly intrusive.
The abbreviated form うざ (uza) became particularly common in text and social media, following a pattern in Japanese slang where i-adjectives drop their ending in casual typed speech (similar to how 可愛い, kawaii, becomes かわ, kawa in some contexts). The word also appears as a hashtag and reaction word in comment sections, functioning similarly to ‘ugh’ or ‘so annoying’ in English-language social media.
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