sedulous

Persevering and constant in effort or application; assiduous. synonym: diligent.

Diligent in application or in the pursuit of an object; constant, steady, and persevering; steadily industrious; assiduous.

Synonyms See assiduity.

Diligent in application or pursuit; constant, steady, and persevering in business, or in endeavors to effect an object; steadily industrious; assiduous.

Marked by care and persistent effort.