IPA: /ˈlʌmpɪʃli/
KK: /ˈlʌmpɪʃli/
In a way that is clumsy or awkward, often moving slowly and heavily.
He walked lumpishly across the room, tripping over his own feet.
Lumpishly → It is formed from "lump" (from Middle English "lumpe", meaning a mass or clump) and the suffix "-ishly" (meaning in a manner of). The word "lumpishly" describes an action done in a clumsy or awkward manner, as if moving like a lump.
Think of moving like a 'lump' — that's why 'lumpishly' means doing something in a clumsy or awkward way.