IPA: /ɪˈneɪnli/
KK: /ɪˈneɪnli/
In a way that is silly or lacking in meaning; foolishly.
He spoke inanely during the meeting, making everyone roll their eyes.
Inanely → It is formed from "inanis" (from Latin, meaning empty or void) and the adverbial suffix "-ly" (meaning in a manner of). The word "inanely" means in a manner that is empty or lacking in sense.
Think of something that is 'empty' ('inanis') and done 'in a manner' ('-ly') — that's why inanely means doing something in a senseless or empty way.