ARDUOUS


Meaning of ARDUOUS in English

adj. Function: adjective

1

Synonyms: HARD 6, difficult, effortful, labored, laborious, operose, rough, strenuous, toilsome, uphill

2

Synonyms: STEEP 1, abrupt, precipitate, precipitous, sheer, sideling, steepdown, steep-to, steep-up, ||stickle

3

Synonyms: TIGHT 4, rough, tricksy, trying

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