black as thunder
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Very black (especially of a mood, a frown, etc.).
Nghĩa · Tiếng Việt
Màu đen rất đậm, thường dùng để mô tả tâm trạng hoặc nét mặt
Machine-translated — suggest a fix
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “black as thunder” mean?
Very black (especially of a mood, a frown, etc.).
Is “black as thunder” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.