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v. Present participle of unset.

""When my wife was a child, she and her siblings would go to the beach, watch the sun set, and then run up the hill really rapidly, 'unsetting' the sun so they then could watch the sun set again," Alley wrote in an e-mail to LiveScience."

unseating    unsettling    upsetting   

tsa-approved    non-polar    mopping-up    immigration-control    end-use