conscientious
/ˌkɑn.ʃiˈɛn.ʃəs/adjective
conscientious is spelled C-O-N-S-C-I-E-N-T-I-O-U-S. The wrong spelling people search most is concientious: about 150 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 52 of all searches for the word. Conscientious is an adjective meaning “Thorough, careful, or vigilant in one’s task performance; painstaking”.
How many letters and syllables are in conscientious?
| Letters | 13: C-O-N-S-C-I-E-N-T-I-O-U-S |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 1.7 times per million words; the 21,209th most frequent word form |
| Wrong spellings searched | 3; the most searched, concientious, about 150 Bing searches a month (all of them) |
| Pairs people search | |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026); rhymes and same-letter words are computed by PlainSpell from its own word list.
How do you spell conscientious?
Conscientious is spelled C-O-N-S-C-I-E-N-T-I-O-U-S. 3 wrong spellings are searched or written often enough to measure; together they are about 1 in 19 of the searches for conscientious in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is conscientious?
Conscientious appears 1.7 times per million words in written English, the 21,209th 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 conscientious?
- UK /ˌkɒn.ʃiˈɛn.ʃəs/
- US /ˌkɑn.ʃiˈɛn.ʃəs/
Conscientious has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-conscientious.ogg, Wikimedia Commons (author and licence on each file's page).
Words people confuse with conscientious
Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).
Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).
What rhymes with conscientious?
One word on PlainSpell end in the same sounds as conscientious from its last stressed vowel (/ɛnʃəs/):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of conscientious
- more conscientious comparative
- most conscientious superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does conscientious mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Thorough, careful, or vigilant in one’s task performance; painstaking.
He was a thoughtful and conscientious worker.
- 2
Influenced by conscience; principled; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong (said of a person).
The advice of wise and conscientious people.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Conscientious in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | consciencieux |
| German | gewissenhaft , Gewissens-, dem Gewissen verpflichtet, auf dem Gewissen beruhend |
| Portuguese | consciencioso |
| Spanish | concienzudo |
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 conscientious come from?
From Middle French conscientieux, from Medieval Latin cōnscientiōsus. Its English equivalent could possibly be analyzed as conscient + -ous. See more at conscience.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).