Synonyms of arduousness

1 Syllable

stew, pain, mess, crux, knot, check, snag, fix, strait, hitch, strain

2 Syllables

deadlock, trouble, muddle, pickle, distress, labor, hardship, crisis, hazard, struggle, scrape

3 Syllables

awkwardness, painfulness, strenuousness, quagmire, obstacle, frustration, obstruction, paradox, impasse, quandary, dilemma, hindrance

4 Syllables

adversity, perplexity, exigency, predicament, barricade, misfortune, complication, emergency, difficulties, tribulation, difficulty, laboriousness