underactive
adjective
underactive is spelled U-N-D-E-R-A-C-T-I-V-E: 11 letters. It appears about once in every 21 million words in written English, the 138,319th most frequent word form (wordfreq, 2021 data). As an adjective, underactive means “Less than normally active” (English Wiktionary, September 2026).
How many letters and syllables are in underactive?
| Letters | 11: U-N-D-E-R-A-C-T-I-V-E |
|---|---|
| In writing | about once in every 21 million words; the 138,319th 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 underactive?
Underactive appears about once in every 21 million words in written English, the 138,319th 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 underactive?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-underactive.wav, Wikimedia Commons (author and licence on each file's page).
Forms of underactive
- more underactive comparative
- most underactive superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does underactive mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Less than normally active.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does underactive come from?
From under- + active.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).