Definition of inveteracy in English:

inveteracy

noun

See inveterate

‘The inveteracy of her pursuit is unfathomable for she is completely deprived of pity and compassion.’
‘He has brought back the doctrines of Calvinism in all their inveteracy, and relaxed the inveteracy of his northern accents.’

Pronunciation

inveteracy

/ɪnˈvɛt(ə)rəsi/