Meaning : Developed or used to greatest advantage.
Not developed, improved, exploited or used.
Vast unexploited (or undeveloped) natural resources.Meaning : (of persons) taken advantage of.
Example :
After going out of his way to help his friend get the job he felt not appreciated but used.
Synonyms : ill-used, put-upon, used, victimised, victimized
Exploited meaning in Bengali (Bangla).