Big Huge Thesaurus

unbreakable

adjective

antonyms

• breakable

similar terms

• infrangible
• shatterproof
• splinterless
• splinterproof

sounds kind of like

• unapproachable
• unenforceable
• unforceful
• unforeseeable
• unforgivable
• unforgivably
• unimpressively
• unperceivable