irreplaceable /ir-i-plāˈsə-bl/

1. Whose loss cannot be made good
2. Without possible substitute

irreplaceˈably adverb

• oversubscribing
• oversubscription
• oversubtle
• oversubtleties
• oversubtlety
• oversupplied
• oversupplies
• oversupply
• oversupplying
• overswam
• oversway
• overswayed
• overswaying
• oversways
• overswear
• overswearing
• overswears
• overswell
• overswelled
• polyglott
• polyglottal
• polyglottic
• polyglottous
• polyglotts
• polygon