IPA: /ˈwaɪnɪŋli/
KK: /ˈhwaɪnɪŋli/
In a manner that expresses dissatisfaction or discomfort, often in a high-pitched or complaining tone.
The child spoke whiningly when he didn't get his way.
Whiningly is formed from "whine" (from Old English "hwīnan", meaning to make a high-pitched sound or complain) and "-ly" (a suffix meaning in a manner of). The word describes the manner of making a high-pitched sound or complaining.
Think of someone making a high-pitched sound or complaining ('whine') and doing it in a certain way ('-ly'). This helps you remember that 'whiningly' means to complain in a high-pitched manner.