# conscientious

> English word · Adjective · IPA /ˌkɒnʃiˈɛnʃəs/ · frequency rank #21,169

## Definitions
1. Thorough, careful, or vigilant in one’s task performance; painstaking.
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).

## Etymology
From Middle French conscientieux, from Medieval Latin cōnscientiōsus. Its English equivalent could possibly be analyzed as conscient + -ous. See more at conscience.

## Common misspellings (19)
`cconscientious`, `cnoscientious`, `concsientious`, `connscientious`, `consccientious`, `consceintious`, `conscienitous`, `conscienntious`, `conscientiosu`, `conscientiouss`, `conscientiuos`, `conscientoius`, `conscienttious`, `conscietnious`, `conscinetious`, `consicentious`, `consscientious`, `cosncientious`, `ocnscientious`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/conscientious