Synonyms of unsettling

1 Syllable
hard, trying
2 Syllables
troublous, painful, troubling, worrying, dismaying, startling, gloomy, vexing, annoying, jiggly, creepy, jouncy
3 Syllables
laborious, alarming, ominous, disturbing, confusing, frightening, perplexing, distressing, disquieting, perturbing, impeding, provoking, difficult, irksome, toilsome, severe, confusions, onerous, unpleasant, upsetting, prophetic, harassing, sinister, confusion, threatening, uncertain, depressing, distressful
4 Syllables
intrusive, pessimistic, troublemaking, disruptive, disconcerting, disorienting, worrisome, discommoding, discomposing, burdensome, disagreeable, discomforting, irritating, inconvenient, bothersome, troublesome, aggravating, tiresome, embarrassing, foreboding, agitating, wearisome, consequential, discouraging
5 Syllables
demoralizing