No.
Diligent means careful, perseverent, showing attention to detail.
Laborious means hard work, usually as part of a long, slow process of work. It can be used to mean industrious, in the sense of being a good worker, but this is no longer common usage.
Diligent inquiry or examination in seeking facts or principles; laborious or continued search after truth; as, researches of human wisdom., To search or examine with continued care; to seek diligently.
Diligent inquiry or examination in seeking facts or principles; laborious or continued search after truth; as, researches of human wisdom., To search or examine with continued care; to seek diligently.
The climb to the top was long and laborious. The sorting of the buttons was laborious and took many hours.
diligent at
Computer is called a diligent machine because it can perform the data processing always at the same ration........
Foundry work can be very laborious.
The word 'diligent' is not a noun; diligent is an adjective, a word to describe a noun: a diligent student, a diligent effort.The noun form for the adjective diligent is diligence, an abstract noun.
I find that looking for answers to questions on this site can be laborious.
I've read much shorter books which were much more laborious to read.
more diligent
Diligent is an adjective.
The prefix of diligent is "di-."