Definitions

1. adjective

not in good physical or mental condition; unwell or unhealthy

“The doctor said she wasn’t unsound, just needed rest.”

2. noun

a sound that is not clear or is not made in a normal way

“The unsound of the broken glass startled everyone.”

3. noun

a section of a ship’s hull that is not watertight and is in danger of flooding

“The unsound below the waterline was a major concern for the sailors.”

4. adverb

in an unsound manner; not in a safe or healthy way

“The unsoundly built house was at risk of collapse.”