underestimate [underestimates](an estimate that is too low) noun [UK: ˌʌn.də.ˈre.stɪ.meɪt] [US: ˈʌn.də.ˈre.stə.ˌmet]
sottostimare verb
underestimate [underestimated, underestimating, underestimates](to perceive as having lower value) verb [UK: ˌʌn.də.ˈre.stɪ.meɪt] [US: ˈʌn.də.ˈre.stə.ˌmet]I've underestimated the strength of my opponent. = Ho sottostimato la forza del mio avversario.