diligent - Dictionary definition and meaning for word diligent
(DILI + AGENT): AGENT working in DILLI have to be CAREFUL and HARDWORKING
somebody who is averagely intelligent what he/she has to do? Work hard! So..deligent is hardworking....
delegate(diligent) is comin be careful
Diligent looks like Delighted Agent. A delighted agent is happy to do his/her job, ,which means he/she is a hard-working person who works carefully.