Synonyms of effortful

1 Syllable

hard, tough, trying, rough

2 Syllables

heavy, upstream, taxing, hard-won, strained, strenuous, knottier, toilful, arduous, knotty

3 Syllables

laborious, demanding, rigorous, difficult, ballbuster, severe, backbreaking, onerous, labored

4 Syllables

oppressive, difficile, reticular

6 Syllables

energy-consuming