Sour
The crossword clue "Sour" is answered by ACERB, a 5-letter entry. Used 43 times across 27 distinct years; most recently in 2025; first recorded in 1948. It appears in 12 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ACERB
5 letters. See every clue for this answer on the ACERB answer page.
Used 43 times across 27 distinct years; most recently in 2025; first recorded in 1948. It appears in 12 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- ACIDIC (5 uses in xd)
Other clues for ACERB
Every other clue in this collection answered by ACERB, most used first.
- Bitter - used 69 times, most recently in 2024
- Biting - used 37 times, most recently in 2026
- Sharp - used 27 times, most recently in 2024
- Harsh - used 23 times, most recently in 2020
- Sour-tasting - used 22 times, most recently in 2025
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Make amends - ATONE, used 664 times
- In the know - AWARE, used 356 times
- Once more - AGAIN, used 336 times
- Nimble - AGILE, used 322 times
- Battery terminal - ANODE, used 319 times
- Book of maps - ATLAS, used 317 times
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