acérrimo
Portuguese, adjective/aˈsɛ.ʁi.mu/
acérrimo is spelled A-C-É-R-R-I-M-O (8 letters) and appears about once in every 15 million words in written Portuguese, the 118,367th most frequent Portuguese word form (wordfreq, 2021 data). Acérrimo is a Portuguese adjective meaning “obstinate” (English Wiktionary, September 2026). It is also a superlative degree of acre (“bitter”). The Portuguese Wiktionary (Wikcionário) defines it as “demasiado forte, extremamente tenaz”.
What does acérrimo mean in English?
adjective
- 1
superlative degree of acre (“bitter”)
- 2
obstinate
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
How Portuguese dictionaries define it
adjective: 1. demasiado forte, extremamente tenaz
The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.
Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of acérrimo
- acérrima feminine
- acérrimos masculine plural
- acérrimas feminine plural
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce acérrimo?
- Brazil /aˈsɛ.ʁi.mu/
- Brazil [aˈsɛ.hi.mu]
- /aˈsɛ.ʁi.mu/
Sources: English Wiktionary, Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is acérrimo in Portuguese?
acérrimo appears about once in every 15 million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).