[ adj ] impossible to break especially under ordinary usage <adj.all> unbreakable plastic dinnerwear
Called Nouvage, the enamel comes in an unbreakable barrel which releases color through a contoured brush when you press a button on the barrel.
They wanted a cheap, simple car that would stand being driven overloaded on bad roads or across fields. The 2CV was an unbreakable runabout but the R4 was a better load-carrier - its tailgate and flat floor were bigger.
Their advantages are obvious: less weight, unbreakable, safer than metal or glass, easy to stash in backpacks and lunch boxes, and easily crushed and discarded.
When our policy has a moral center, we gain the unbreakable resolve that comes from standing for things we believe in.
The detective hero, a piscatorial Morse, is with the chief suspect. The villain's hitherto unbreakable alibi depends in some way - the details are still sketchy - on him passing himself off as an angler.
But the passing of years has not weakened his cheery good nature, unbreakable spirit or his touch.