adjective
assiduous
uh-SIJ-oo-us/əˈsɪdʒuəs/
Showing careful, persistent effort.
The assiduous mosaic maker carefully fits another tiny tile into place.
Etymology
Latin assiduus linked continual presence with constant application. Being steadily present at one’s work supplies the connection to the careful, persistent effort described by assiduous.
In context
He never gave even a hint of his hopes of the restoration of sight; and he was so assiduous in his attention that there arose no opportunity of accidental discovery
More examples
- He is assiduous in checking every citation.
- The garden flourished under her assiduous care.
- Their assiduous efforts kept the project on schedule.
Forms
assiduous · more assiduous · most assiduous
Similar words
- diligent
- A more common term for careful, persistent effort.
- meticulous
- Emphasizes attention to detail rather than sustained application.