Synonyms of taxing

1 Syllable

tough, trying

2 Syllables

wearing, heavy, grievous, tedious, strenuous, sapping, toilful, carking, arduous, stressful, weighty, tiring, draining

3 Syllables

punishing, demanding, disturbing, perplexing, backbreaker, effortful, toilsome, difficult, exhausting, backbreaking, fatiguing, onerous, exigent, exacting

4 Syllables

infestive, oppressive, wearisome, worrisome, burdensome, troublesome, enervating, overtaxing, depressive

5 Syllables

superincumbent

6 Syllables

energy-consuming