चुनौतीपूर्ण angolul

challengingly▼adjective
[UK: ˈtʃæ.lɪn.dʒɪŋ.li] [US: ˈtʃæ.lɪn.dʒɪŋ.li]

daunting▼adjective
[UK: ˈdɔːnt.ɪŋ] [US: ˈdɒnt.ɪŋ]