1. unscrewed - Adjective
2. unscrewed - Verb
unscrewed
simple past and past participle of unscrew
unscrewed (not comparable)
Not having been screwed.
Simply sliding off the side panel reveals the drive bay, which can quickly be unscrewed." Source: Internet
To do this, the cartridge must be unscrewed, opened up, and the old battery would be removed and replaced. Source: Internet