IPA: //ʌnˈstɪk//
KK: /ʌnˈstɪk/
To separate something that is stuck or attached to something else.
I need to unstick the paper from the table before I can write on it.
Past: unstuck
Past Participle: unstuck
Unstick → It is formed from "un-" (meaning not or opposite of) and "stick" (from Old English "stician", meaning to adhere or attach). The word "unstick" means to remove something that is stuck or to make it not adhere.
Think of 'not' or 'opposite' ('un-') when you want to 'remove' something that is 'stuck' — that's what unstick means.