LABORIOUS


Meaning of LABORIOUS in English

adj. Function: adjective

Synonyms: HARD 6, arduous, difficult, effortful, heavy, labored, operose, strenuous, toilsome, uphill

Antonyms: easy, effortless

Merriam Webster. Collegiate thesaurus English dictionary.      Английский энциклопедический толковый словарь тезауруса.