Since the professor had once taught higher level classes, his students dreaded his cumbrous tests.

Once a few employees quit the company, the workload became cumbrous since replacements were not hired yet.

With blood on his hands, the man found it difficult to choose his words for his cumbrous explanation.

Without practicing, the rookie runner found the marathon to be cumbrous.

The cumbrous methods for learning physics was made apparent to the teacher after the first test.