As verbs the difference between deserted and abandoned

is that deserted is (desert) while abandoned is (abandon).

As adjectives the difference between deserted and abandoned

is that deserted is abandoned while abandoned is self-abandoned, or given up to vice; immoral; extremely wicked, or sinning without restraint; irreclaimably wicked ; as, an abandoned villain {{defdate|first attested from 1350 to 1470}}{{reference-book | last =| first = | authorlink = | coauthors = | editor =brown, lesley | others = | title = the shorter oxford english dictionary | origdate = | origyear = 1933| origmonth = | url = | format = | accessdate = | accessyear = | accessmonth = | edition = 5th | date = | year =2003| month = | publisher =oxford university press | location =oxford, uk | language = | id = | doi = | isbn =978-0-19-860575-7 | lccn = | ol = | pages =2| chapter = | chapterurl = | quote =}}.