- Free from constraint; uninhibited. [Late 17th century]
- No longer maintained by its former owners, residents, or caretakers; forsaken, deserted. [Late 15th century]
- Self-abandoned, or given up to vice; immoral; extremely wicked, or sinning without restraint; irreclaimably wicked; as, an abandoned villain. [First attested from 1350 to 1470]
- (geology) No longer being acted upon by the geologic forces that formed it.
- simple past tense and past participle of abandon