1.
lowest, minimum
The smallest amount, degree, or level.
2.
worst, terrible
Used informally to express strong disapproval.
最低 can function as a noun, na-adjective, or adverb meaning "lowest" or "minimum."
Usage
1. Lowest point/degree: 最低気温 (lowest temperature)
2. Minimum required: 最低限度 (minimum limit)
3. Terrible/awful (colloquial): あいつは最低だ (He's the worst)
As a na-adjective modifying nouns: 最低な人 (a terrible person). The colloquial "worst/terrible" usage is common among younger speakers.
Common patterns
Similar words
Opposite of 最高 (highest, best, maximum).
Related Words
Antonym:
最高 (best)
Compare:
最上 (best, highest, supreme)
Compare:
最大 (maximum)
Related:
最小 (minimum)
Compare:
最少 (the fewest)
Compare:
最下 (lowest)