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Synonyms for Unsettled (same or very similar meaning)

WordNet sense 1 (subject to change):
changeable, uncertain

WordNet sense 2 (liable to or capable of change):

WordNet sense 3 (not brought to a conclusion; subject to further thought):
open, undecided

WordNet sense 4 (unsettled in mind or opinion):

WordNet sense 5 ((of groups of people) tending to travel and change settlements frequently):
mobile, mobile

From the ODE community, based on WordNetadd/edit