irreplaceable /ir-i-plāˈsə-bl/

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

irreplaceˈably adverb

• dilettantisms
• diligence
• diligences
• diligent
• diligently
• dill
• dilli
• dillier
• drawing-tables
• draw in one's horns
• draw it fine
• draw it mild
• drawl
• drawled
• drawler
• drawlers
• drawling
• drawlingly
• drawlingness
• drawlingnesses
• draw lots
• drawls
• drawn
• draw near
• draw-net