Adjective: unappreciated ,ún-u'pree-shee,ey-tid
- Having value that is not acknowledged
"His unappreciated contributions to the project went unnoticed by management";
- unsung, unvalued
- Not likely to be rewarded
"His unappreciated efforts to improve the system went unnoticed";
- thankless, ungratifying
See also: unacknowledged, unrewarding
Encyclopedia: Unappreciated