irreplaceable /ir-i-plāˈsə-bl/

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

irreplaceˈably adverb

• swallets
• swallow
• swallow-dive
• swallow-dives
• swallowed
• swallower
• swallowers
• swallow hole
• swallow holes
• swallowing
• swallow one's pride
• swallows
• swallow-shrikes
• swallowtail
• swallowtailed
• submerses
• submersibilities
• submersibility
• submersible
• submersibles
• submersing
• submersion
• submersions
• submicrominiature
• submicron