занижать bedeutet auf Englisch

understate [understated, understating, understates]▼(to state something with less completeness than needed)
verb
[UK: ˌʌn.də.ˈsteɪt] [US: ˈʌn.dər.ˌstet]

belittle [belittled, belittling, belittles]▼(to knowingly say that something is smaller or less important than it actually is)
verb
[UK: bɪ.ˈlɪt.l̩] [US: bə.ˈlɪt.l̩]