Definition of adamantine in English:

adamantine

adjective

literary
  • Unable to be broken.

    ‘adamantine chains’
    figurative ‘her adamantine will’
    • ‘I don't have a problem with naturalistic explanations for miracles, as long as they are not too tortured or based on a philosophy which is, at bottom, the adamantine will to deny the supernatural at all costs.’
    • ‘Here is Prometheus, the rebel: nail him to the rock; secure him on this towering summit fast in the unyielding grip of adamantine chains.’
    • ‘They need hope - a kind of unflappable, adamantine hope.’
    • ‘Greece will bring an adamantine spirit to the final rather than virtuosity.’
    • ‘I am possessed, as much as the next man, of that stiff upper lip, steely resolve and adamantine backbone which make us British positively megalithic in the face of danger.’
    unbreakable, shatterproof, non-breakable
    View synonyms

Pronunciation:

adamantine

/ˌadəˈmantʌɪn/