Antonyms of adj frangible

1 sense of frangible

Sense 1
frangible -- (capable of being broken; "the museum stored all frangible articles in locked showcases")

INDIRECT (VIA breakable) -> unbreakable -- (impossible to break especially under ordinary usage; "unbreakable plastic dinnerwear")

Similarity of adj frangible

1 sense of frangible

Sense 1
frangible -- (capable of being broken; "the museum stored all frangible articles in locked showcases")
       => breakable (vs. unbreakable) -- (capable of being broken or damaged; "earthenware pottery is breakable"; "breakable articles should be packed carefully")

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