1. That may not be returned
   "nonreturnable bottles cannot be exchanged for a deposit"; "sale merchandise is nonreturnable"

Antonym: returnable

• troubadour
• trouble
• trouble and strife
• trouble oneself
• trouble spot
• trouble-free
• troubled
• troublemaker
• troubler
• troubleshoot
• troubleshooter
• troublesome
• troublesomeness
• troubling
• troublous
• trough
• trounce
• trouncing
• troupe
• trouper
• troupial
• trouser
• trouser clip
• trouser cuff
• trouser leg