New American Oxford Dictionary
unbreakable
un break a ble |ˌənˈbrākəbəl ʌnˈbreɪkəbl | ▶adjective not liable to break to be break easily: plastic bottles that are essentially unbreakable | an unbreakable code.
Oxford Dictionary
unbreakable
un |break ¦able |ʌnˈbreɪkəb (ə )l | ▶adjective not liable to break or able to be broken easily: the flask is guaranteed unbreakable | an unbreakable code.
American Oxford Thesaurus
unbreakable
unbreakable adjective unbreakable dishes: indestructible, shatterproof, durable, long-lasting; reinforced, sturdy, tough, stout, resistant, infrangible, heavy-duty, industrial-strength. ANTONYMS fragile.
Oxford Thesaurus
unbreakable
unbreakable adjective a new type of unbreakable plastic bottle: shatterproof, non-breakable, indestructible, imperishable, resistant, durable, everlasting, long-lasting, made to last; toughened, sturdy, stout, hard-wearing, heavy-duty; literary adamantine; rare infrangible. ANTONYMS fragile, flimsy.
Sanseido Wisdom Dictionary
unbreakable
ù n br é ak a ble 形容詞 壊す [破る, 折る ]ことができない .