IPA: /ˈtɒtərɪŋli/
KK: /ˈtɑːtərɪŋli/
In a way that shows unsteadiness or a lack of balance, often while walking or moving.
The child walked totteringly across the room, trying to keep his balance.
Totteringly → It is formed from "totter" (of uncertain origin, possibly from Middle English *toteren*, meaning to sway or stagger) and the suffix "-ingly" (meaning in a manner of). The word describes the manner of swaying or staggering, often used to refer to unsteady movement.
Imagine someone moving in a way that is unsteady or swaying — that's what 'totteringly' means, as it describes the manner of staggering.