Not gathered or assembled; remaining scattered or dispersed. The uncollected leaves covered the entire yard, creating a colorful carpet.
Not claimed or retrieved; left behind or forgotten. The uncollected package sat in the post office for weeks.
Not calm or composed; lacking self-control. She appeared uncollected and anxious during the interview.
Not paid or recovered; outstanding (of money, debts, or taxes). The city struggled to balance its budget because of millions in uncollected taxes.