lubberly

Clumsy and stupid; resembling a lubber (an inexperienced person).

a great lubberly boy

Ponocrates and Eudemon burst out in a laughing so heartily, that they had almost split with it, and given up the ghost, in rendering their souls to God: even just as Crassus did, seeing a lubberly ass eat thistles;

Lacking in seamanship; of or suitable to a landlubber who is new to being at sea and unfamiliar with the ways of a sailor.

"Do not use such a lubberly expression, my dear Rose, if you respect your father's profession. On a vessel is a new-fangled Americanism, that is neither fish, flesh, nor red-herring, as we sailors say,— neither English nor Greek."

In the manner of a landlubber.

I'm not ignorant of these matters, having been many years at sea—and seamen, you must know, are curious in knots; I cannot endure to see anything done lubberly.