This is the 4721st most frequent Japanese word.
最低
"最低" means "lowest," "minimum," or "worst."
Here, '最低' is used to describe someone's actions or behavior as being very bad or unacceptable.
彼の行動は最低だ。
His behavior is the worst.
In this sentence, '最低' refers to the lowest temperature recorded or expected.
最低気温は今日マイナス5度だ。
The minimum temperature today is minus 5 degrees.
Here, '最低' is used to indicate a threshold, meaning at least to the extent specified.