CUMBROUS, adjective 1. Burdensome; troublesome; rendering action difficult or toilsome; oppressive; as a cumbrous weight or charge. 2. Giving trouble; vexatious; as a cloud of cumbrous gnats. 3. Confused; jumbled; obstructing each other; as the cumbrous elements.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI