彼は鈍重な動きで作業を続けた。
He continued his work with sluggish movements.
その牛は鈍重に見えるが、走り出すと意外に速い。
The ox looks ponderous, but it is surprisingly fast once it starts running.
鈍重な性格のせいで、彼は周りの変化になかなか気づかない。
Because of his stolid nature, he is slow to notice the changes around him.
大型のトラックが鈍重な音を立てて坂を上っていった。
A large truck lumbered up the slope with a heavy, dull sound.