I will undertake the project next week.

The submarine uses sonar to navigate underwater.

I need to buy new underwear.

Undoubtedly, she is the best candidate for the job.

The success she achieved was undreamed-of.

She undressed and put on her pajamas.

I felt a sense of unease as I walked through the dark alley.

She paced back and forth uneasily, unable to shake off the feeling of unease.

Despite the exciting news, John remained unenthusiastic.

The ground was uneven, with numerous rocks and bumps.