IPA: /ɪmˈprɛsɪvli/
KK: /ɪmˈprɛsɪvli/
In a way that makes a strong impact or leaves a lasting impression.
She performed impressively in the competition, earning first place.
Impressively → It is formed from "impress" (from Latin "imprimere", meaning to press into or upon) and "-ively" (a suffix forming adverbs indicating manner). The word "impressively" means in a manner that makes a strong impact or leaves a lasting impression.
Think of something that 'presses' into your mind ('impress') and remember that 'impressively' means doing something in a way that makes a strong impact.