ungainly
Definitions
Moving in an awkward, clumsy, or ungraceful way.
Lacking in grace or ease of movement; unwieldy.
Examples
The young giraffe looked quite ungainly as it stumbled across the savanna on its long, spindly legs.
He made an ungainly attempt to climb over the fence, nearly losing his balance several times.
Despite her ungainly appearance in the oversized winter coat, she moved with surprising grace across the ice.