IPA: /ɪmˈpoʊzɪŋli/
KK: /ɪmˈpoʊzɪŋli/
In a way that is impressive or intimidating, often because of size, strength, or dignity.
The castle stood imposingly on the hill, dominating the landscape.
Imposingly → It is formed from "impose" (from Latin "imponere", meaning to place upon) and the suffix "-ingly" (indicating manner or quality). The word "imposingly" means in a manner that places an impressive or commanding presence upon others.
Think of someone 'placing' ('imponere') a strong impression on others — that's why doing something imposingly means doing it in a commanding way.