Definition of "unstick"

unstick

verb
third-person singular simple present unsticks, present participle unsticking, simple past and past participle unstuck
1. (transitive, sometimes figurative) To free from the condition of being stuck.
  Quotations
  Add the rice and sauté until the first few grains begin to brown (about 3 minutes). Add peas, stock, and salt. Mix well and be sure to scrape the bottom of the pan to unstick any rice.
  2012, Laura Pazzaglia, The Everything Healthy Pressure Cooker Cookbook
2. (intransitive) To become freed from a stuck condition.
  Quotations
  Starting to panic, I stepped back and put my foot right through the door. Outside, Nelson laughed. The door unstuck. I hopped on one leg as it swung outward, carrying my boot.
  2019, Russ Linton, Plea Bargain
3. (intransitive, aviation, of an aircraft) To leave the ground during takeoff.