lourd

heavy; loaded with; clumsy, oafish; annoying, a drag; sultry, humid

“lourd de conséquences” — with far-reaching consequences, with serious consequences, that has significant implications

Inherited from Middle French lourd, from Old French lorz, lourt, from Late Latin lurdus, lordus, probably from Latin lūridus (“sallow”), possibly influenced by Frankish *lort (“crooked, clumsy”); related to Old English lort (“crooked”).