New American Oxford Dictionary
unfazed
un fazed |ˌənˈfāzd ʌnˈfeɪzd | ▶adjective not disconcerted or perturbed: the protestors were unfazed by the prospect of arrest.
Oxford Dictionary
unfazed
un |fazed |ʌnˈfeɪzd | ▶adjective informal not disconcerted or perturbed: the protestors were unfazed by the prospect of arrest.
American Oxford Thesaurus
unfazed
unfazed adjective we thought the news would upset him, but he seemed unfazed: calm, unruffled, unperturbed, untroubled, poised, relaxed, self-possessed, nonplussed, together, laid-back.
Sanseido Wisdom Dictionary
unfazed
un fazed /ʌ̀nféɪzd /形容詞 平気な, 平然としている .
The Wordsmith Dictionary