i-adjective
Physical heaviness; similar to 重たい but with a slightly more emphatic or colloquial feel due to the geminate consonant.
See also: 重たい
この荷物は重ったいね。
This luggage is heavy, isn't it.
i-adjective
heavy (feeling, atmosphere); serious; gloomy; depressing
Describes a mood, atmosphere, or emotional weight that feels oppressive or somber.
See also: 重たい
会議の雰囲気が重ったい。
The atmosphere of the meeting is heavy.