Thesaurus.com
Dictionary.com
Showing results for unpaid. Search instead for nonpaid.
Definitions

unpaid

ADJECTIVE
free, voluntary
Synonyms
WEAK
contributed donated due freewilled gratuitous honorary unindemnified unrewarded unsalaried volunteer
Antonyms
WEAK
paid settled
ADJECTIVE
not settled; taken without remuneration
Synonyms
STRONGEST
delinquent outstanding overdue
WEAK
due in arrears mature not discharged owing past due payable undefrayed unliquidated unsettled
Antonyms
STRONGEST
paid
WEAK
settled

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.