Focus on the pronunciation of arbitrary
English definition of “arbitrary”
› based on a desire or idea or chance rather than reason: Her outfit was an arbitrary choice but was just perfect. arbitrarily
/ˌɑr·bəˈtreər·ə·li/ adv › We didn’t think much about it, just arbitrarily decided to go to Italy. arbitrariness
/ˌɑr·bəˈtreər·i·nəs/ n [U] › disapproving The arbitrariness of human nature infuriates me.