IPA: /ˈnʌm.bli/
KK: /nʌmbli/
In a way that shows a lack of feeling or emotion; without sensitivity or awareness.
She stared numbly at the screen, unable to process what she had just seen.
Numbly → It is formed from "numb" (from Old English "numb", meaning unable to feel) and "-ly" (a suffix meaning in a manner). The word "numbly" means in a manner that is unable to feel or lacking sensation.
Think of being unable to feel ('numb') and doing something 'in that manner' ('-ly'). This helps you remember that 'numbly' describes acting without feeling.