IPA: /ˌʌndərˈstændəbli/
KK: /ʌndərˈstændəbli/
In a way that is easy to understand or reasonable given the circumstances.
She was understandably upset after hearing the bad news.
Understandably → It is formed from "under" (from Old English "under", meaning beneath or below), "stand" (from Old English "standan", meaning to stand), and "-ably" (meaning in a manner that can be). The word "understandably" means in a manner that can be comprehended or grasped, often referring to a situation that is easy to understand.
Think of something being 'beneath' ('under') and 'standing' ('stand') firmly in your mind — that's why understandably means something that can be easily grasped.