efficaciously
adverb
efficaciously is spelled E-F-F-I-C-A-C-I-O-U-S-L-Y: 13 letters. It appears about once in every 37 million words in written English, the 187,122nd most frequent word form (wordfreq, 2021 data). As an adverb, efficaciously means “in an efficacious manner” (English Wiktionary, September 2026).
How many letters and syllables are in efficaciously?
| Letters | 13: E-F-F-I-C-A-C-I-O-U-S-L-Y |
|---|---|
| In writing | about once in every 37 million words; the 187,122nd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is efficaciously?
Efficaciously appears about once in every 37 million words in written English, the 187,122nd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce efficaciously?
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-efficaciously.wav, Wikimedia Commons (author and licence on each file's page).
Forms of efficaciously
- more efficaciously comparative
- most efficaciously superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does efficaciously mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adverb
- 1
in an efficacious manner
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Efficaciously in Spanish, French, German and Portuguese
In the sense in an efficacious manner:
| Language | Words |
|---|---|
| Portuguese | eficazmente |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does efficaciously come from?
From efficacious + -ly.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).