Synonyms of shatterproof

1 Syllable
firm, tight
2 Syllables
rugged, brass-bound, brassbound, solid, lasting
3 Syllables
unyielding, durable, toughened, armored, resistant
4 Syllables
unbreakable, unshakable, infrangible, nonbreakable, everlasting, perdurable
5 Syllables
adamantine, incorruptible, indestructible, invulnerable