1. [ adjective ] quietly and steadily persevering especially in detail or exactness
Synonyms: persevering

"a diligent (or patient) worker" "with persevering (or patient) industry she revived the failing business"

Related terms: patient
2. [ adjective ] characterized by care and perseverence in carrying out tasks

"a diligent detective investigates all clues" "a diligent search of the files"

Related terms: negligent hardworking assiduous busy careful
Similar spelling:   diligently