IPA: /ˈblaɪndɪŋli/
KK: /ˈblaɪndɪŋli/
In a way that is extremely bright or overwhelming, often causing temporary loss of sight or clarity.
The sun was shining blindingly, making it hard to see anything clearly.
Blindingly → It is formed from "blind" (from Old English "blinda", meaning unable to see) and the suffix "-ly" (meaning in a manner of). The word "blindingly" means in a manner that causes blindness or is extremely bright to the point of obscuring vision.
Think of being 'unable to see' ('blind') and how something can be so bright that it affects your vision 'in a manner' ('-ly'). This helps you remember that 'blindingly' refers to something that is so bright it can blind you.