unappreciated
definition
not recognized or valued for one's contributions or qualities
example
Despite his tireless efforts, John felt unappreciated for his contributions to the project.
synonyms
unvalueddisregardedundervalued
word origin — The word 'unappreciated' originates from the prefix 'un-' meaning 'not,' and the verb 'appreciate,' which comes from the Latin 'appretiare,' meaning 'to value, estimate, or appraise.'