Hot, cold, ouch, look out
How the weather and your body feel, and when something is dangerous: hot, cold, it hurts and watch out. These are the daily small-talk openers and the reports and warnings you have to make on the spot.
atsui
polite atsui desuhot (weather, things)
暑い あつい 暑いです
Says it's hot, about the weather and air (kyou atsui ne) or about food, drinks and things you touch; the top small-talk opener in summer. Written 暑い for weather and 熱い for things, but it is one word by ear.
kyou, atsui ne
It's hot today.
今日、暑いね
kyou wa atsui desu ne
It's hot today.
今日は暑いですね
Touching something hot, people clip it to atsu!; atsui 'thick' differs only in pitch.
Learn alongside: samui
samui
polite samui desucold (weather, feeling)
寒い さむい 寒いです
Says it's cold, about the weather and how you feel (samui! = I'm cold); not for cold drinks or objects, which are tsumetai.
kyou, samui ne
It's cold today.
今日、寒いね
kyou wa samui desu ne
It's cold today.
今日は寒いですね
Often clipped to samu!; the drawled samii! is rough, mostly male speech. samui also means a joke fell flat.
itai
polite itai desupainful, it hurts, ouch
痛い いたい 痛いです
Reports pain (atama ga itai = my head hurts; doko ga itai? = where does it hurt?) and is the reflex 'ouch!'; figuratively, sore wa itai = that hurts, that's a blow.
chotto atama itai
I've got a bit of a headache.
ちょっと頭痛い
chotto atama ga itai desu
I've got a bit of a headache.
ちょっと頭が痛いです
As a reflex it is clipped to ita! or stretched to ittaa!; itee! / ite! are rough and masculine. About a person or behaviour (ano hito, itai) it is slang for 'cringey'.
abunai
polite abunai desudangerous, risky, watch out!
危ない あぶない 危ないです
Warns of danger on the spot (abunai! = watch out!) and calls anything risky, from a road to a plan. It also says something is at risk (jikan, abunai = we might not make it; tesuto, abunai = I might fail). After a near miss, abunakatta = that was close.
soko, abunai yo! ki o tsukete
Careful there! Watch out.
そこ、危ないよ!気をつけて
soko, abunai desu yo. ki o tsukete kudasai
It's dangerous there. Please be careful.
そこ、危ないですよ。気をつけてください
As a shout, abunai! is fine to anyone, strangers included, with no desu; abunee! is the rough, mostly male version. 'Not dangerous' is abunakunai.