IPA: /ˈmʌskjʊləli/
KK: /ˈmʌskjələrli/
In a way that relates to or shows strength and well-defined muscles.
He lifted the weights muscularly, showcasing his strength and training.
Muscularly → It is formed from "muscular" (from Latin "musculus", meaning little mouse, referring to the shape of muscles) and "-ly" (meaning in a manner). The word "muscularly" means in a manner relating to or characteristic of muscles.
Think of the word 'muscular' which relates to muscles, and remember that 'muscularly' describes doing something in a way that involves or pertains to muscles.