I. adjective
Etymology: from present participle of lumber (I)
1. : ponderous and graceless in appearance
the enormous lumbering palaces of commerce — Edith Sitwell
the lumbering deal table — Charles Dickens
2.
a. : slow-moving : having a heavy gait : clumsy , cumbersome
the big lumbering two-wheel carts piled high with supplies — Green Peyton
the lumbering , swag-bellied trot of an old milker — F.D.Davison
b. : dull , slow-witted
could always outwit his lumbering brain — Liam O'Flaherty
3. : lacking in grace, subtlety, or fluency of expression
lumbering and irregular hexameters — Gilbert Highet
cutting through involved lumbering sentences — S.T.Williamson
Synonyms: see awkward
II. noun
( -s )
Etymology: from gerund of lumber (III)
: the business of cutting or getting timber or logs from the forest for lumber, of processing it for sale, and of marketing it