AskEraser  |  Settings
Ask.com   
 


Synonyms
ar·du·ous (äŕjōō-əs)

[From Latin arduus, high, steep.]

adjective 

  1. Demanding great effort or labor; difficult: “the arduous work of preparing a Dictionary of the English Language” (Thomas Macaulay)
  2. Testing severely the powers of endurance; strenuous: a long, arduous, and exhausting war.
  3. Hard to traverse, climb, or surmount. See synonyms at burdensome See synonyms at hard

derivatives

aŕdu·ous·ly
adverb
aŕdu·ous·ness
noun