Only 34 words remain in this category after removing fabricated entries and duplicates from the draft — a reminder that genuine new i-adjectives (words ending in い) become rare at the N1 level.

This article is part of our JLPT N1 Complete Vocabulary Guide. Practice all 34 words with the I-Adjectives Vocabulary deck in Onigiri Anki.

Base, Vulgar & Distasteful (7)

Words condemning someone's character, appearance, or behavior as low or disgraceful.

base, sordidあさましいasamashii

彼のあさましい振る舞いに、みんながうんざりした。 — His petty, sordid behavior disgusted everyone.

repugnantうとましいutomashii

彼の身勝手な発言はうとましいものだ。 — His selfish remarks are repugnant.

filthy, sordidけがらわしいkegarawashii

あのけがらわしい噂はわざと広められた。 — That filthy rumor was spread on purpose.

indecentはしたないhashitanai

人前ではそんなにはしたない笑い方をするな。 — Don't laugh in such an indecent way in public.

garish, harshどぎついdogitsui

そのポスターはどぎつい色使いだった。 — The poster had a garish, harsh color scheme.

untidy; squalidむさくるしいmusakurushii

その部屋はむさくるしくて、すぐに出たくなった。 — The room was so untidy that I wanted to leave immediately.

pathetic; miserlyいじましいijimashii

彼がそんな少しの金を惜しむのは、いじましい。 — It is pathetic that he would begrudge such a small amount of money.

Longing, Regret & Melancholy (6)

Emotional adjectives for nostalgia, loneliness, and wistful dissatisfaction.

lonely, desolateうら寂しいurasabishii

夜の駅はうら寂しい雰囲気が漂っていた。 — The station at night had a lonely, desolate atmosphere.

enviableうらやましいurayamashii

三か国語を話せるなんて、うらやましい。 — Being able to speak three languages is enviable.

lonely; drearyわびしいwabishii

人のいない部屋はわびしかった。 — The empty room felt dreary.

deplorable; lamentableなげかわしいnagekawashii

そんなことが今も起きるとはなげかわしい。 — It is lamentable that such a thing still happens.

unsatisfyingものたりないmonotarinai

その説明ではものたりない。 — That explanation is unsatisfying.

disagreeable; loathsomeいとわしいitowashii

あの態度はいとわしい。 — That attitude is loathsome.

Intensity, Vividness & Excess (4)

Adjectives that emphasize how extreme, striking, or overwhelming something is.

terrible, tremendousものすごいmonosugoi

昨夜の嵐はものすごい勢いだった。 — The storm was tremendous.

heavy, pompousものものしいmonomonoshii

式場の入口はものものしい警備に囲まれていた。 — The entrance to the venue was surrounded by heavy security.

grotesque, eerieおどろおどろしいodoroodoroshii

その廃屋はおどろおどろしい雰囲気だった。 — The abandoned house had a grotesque, eerie feel.

fishy, suspiciousきな臭いkinakusai

その契約にはきな臭いところがある。 — There is something fishy about that contract.

Manner, Devotion & Formality (7)

Words describing how sincerely, respectfully, or awkwardly someone behaves.

brave; valiantいさましいisamashii

いさましい消防士が建物に飛び込んだ。 — The brave firefighter rushed into the building.

fragrant; promisingかんばしいkanbashii

その店の将来はかんばしくない。 — The store's future does not look promising.

halting; falteringたどたどしいtadotadoshii

彼女はたどたどしい声で質問に答えた。 — She answered the question in a halting voice.

overfamiliar; presumptuousなれなれしいnarenareshii

初対面でそんなになれなれしい態度を取るな。 — Don't act so overfamiliar when meeting someone for the first time.

feigned; insincereそらぞらしいsorazorashii

彼の謝罪はそらぞらしく聞こえた。 — His apology sounded insincere.

industrious; eagerかいがいしいkaigaishii

彼女はかいがいしく部屋を片づけた。 — She diligently cleaned the room.

respectful; deferentialうやうやしいuyauyashii

生徒たちは校長の話をうやうやしく聞いていた。 — The students were listening respectfully to the principal's speech.

Physical Sensation & Discomfort (10)

Bodily or atmospheric feelings — from refreshing to irritating.

tepid, half-heartedなまぬるいnamanurui

彼の返事はなまぬるいものだった。 — His response was tepid and half-hearted.

listlessけだるいkedarui

昼食のあと、けだるい気分で集中できなかった。 — After lunch, I felt listless and couldn't concentrate.

busy, hurriedせわしいsewashii

彼は一日中せわしかった。 — He was busy all day.

awkward; repellentけむたいkemutai

彼に見られると、けむたい気分になる。 — When he looks at me, I feel uncomfortable.

itchy; awkwardむずがゆいmuzugayui

彼のからかいはむずがゆかった。 — His teasing was embarrassing and made me feel awkward.

ticklish; embarrassingくすぐったいkusuguttai

私はくすぐったいので、脇腹を触らないでください。 — I'm ticklish, so please don't touch my sides.

fresh, refreshingすがすがしいsugasugashii

朝の空気がすがすがしかった。 — The morning air felt fresh and refreshing.

troublesomeわずらわしいwazurawashii

この書類を書くのはわずらわしい。 — Filling out this document is troublesome.

austere; sophisticatedしぶいshibui

その古いジャズバーは、しぶい雰囲気があった。 — That old jazz bar had a sophisticated atmosphere.

alluringなまめかしいnamamekashii

彼女のなまめかしい笑みに、彼は思わず見とれた。 — He was involuntarily captivated by her alluring smile.

Why N1 i-adjectives are a small, literary category

Japanese stopped productively coining new i-adjectives centuries ago in the way it still coins new na-adjectives and nouns from Chinese roots — most everyday i-adjectives (高い, 新しい, 楽しい) are learned by N4-N3. What remains at N1 is a small set of literary, descriptive words that survived into modern written Japanese specifically because they capture a nuance no na-adjective or compound quite replaces, like ものものしい (an exaggerated, overly solemn atmosphere) or そらぞらしい (transparently insincere). Several, like うら寂しい and きな臭い, are compounds built on a familiar root (寂しい, 臭い) with a prefix that sharpens the meaning.

Frequently Asked Questions

What does きな臭い actually mean — does it relate to smell?

Literally it means "smelling of gunpowder," but in modern usage it almost always means "suspicious" or "having an ominous, unsettled feel" (国際情勢がきな臭くなってきた, the international situation is starting to feel ominous). It rarely describes an actual smell anymore.

How is なれなれしい different from just being friendly?

なれなれしい specifically means overfamiliar in a way that oversteps social boundaries — acting too casually or intimately with someone you don't actually know well. It's almost always used critically, unlike genuinely positive friendliness words.

Practice All 34 I-Adjectives Vocabulary Words

Import the I-Adjectives Vocabulary deck into Onigiri Anki and master this category with spaced repetition.

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JLPT N1 I-Adjectives Vocabulary (2026)