Definitions

1. noun

A subtle or underlying quality or feeling in a person’s voice, words, or behavior; a hint of something unpleasant or discreditable.

“She spoke with an undertone of annoyance, but tried to hide it.”

2. noun

A low sound or a low-pitched sound, especially a musical note.

“The song featured a beautiful undertone that added to its emotional impact.”

3. verb

To give a subtle or underlying quality or feeling to a person’s voice, words, or behavior; to hint at something unpleasant or discreditable.

“He undertoned his criticism to avoid hurting her feelings.”