I
underesti|mate verb BrE AmE ˌʌnd ə r ˈest ɪ |meɪt -ə• AmE ˌ• ə r-
▷ underesti|mated meɪt ɪd -əd AmE meɪt̬ əd
▷ underesti|mates meɪts
▷ underesti|mating meɪt ɪŋ AmE meɪt̬ ɪŋ
II
underestimate noun BrE AmE ˌʌnd ə r ˈest ɪm ət -əm ət, -ɪt; -ɪ meɪt, -ə meɪt AmE ˌ• ə r-
▷ underestimate|s s