daunting

US /ˈdɑːn.t̬ɪŋ/
UK /ˈdɑːn.t̬ɪŋ/
"daunting" picture
1.

seeming difficult to deal with in anticipation; intimidating

:
The task of writing a whole novel is daunting.
He faced the daunting challenge of learning a new language.