ignored (adj.)

• abandoned
• deserted
• despised
• discarded
• dismissed
• disregarded
• forgotten
• missed
• neglected
• overlooked
• rejected
• spurned
• unacknowledged
• unasked
• uncared-for
• unconsidered
• undone
• unrecognized
• unrequited
• unrewarded
• unsolicited
• untended