IMPERTURBABLENESS
\ɪmpətˈɜːbəbə͡lnəs], \ɪmpətˈɜːbəbəlnəs], \ɪ_m_p_ə_t_ˈɜː_b_ə_b_əl_n_ə_s]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C