Définitions
1.AdjectiveDisturbed, upset."I was unsettled by the sudden outburst, and since I didn't know what to do I just stood there, confused."
2.AdjectiveNot in a steady condition, uncertain, subject to change.
3.AdjectiveNot populated, having no settlers or other inhabitants.
4.AdjectiveUnpaid."We need to settle this bill; even if you think the charge is too high we can't just leave it unsettled."
5.Verbsimple past and past participle of unsettle