Hum
Hum noun - A monotonous sound like that of an insect in motion.
Undertone
Undertone noun - A subdued emotional quality underlying an utterance; implicit meaning.
Show all Definitions
Synonyms for Undertone
Hum and undertone are semantically related in suggestion topic. Sometimes you can use "Hum" instead a noun "Undertone".
Mutual synonyms
How words are described
Cite this Source
Undertone and Hum. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/hum/undertone
Hum & Undertone. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/hum/undertone>.
Undertone or Hum. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/hum/undertone.
Google Ngram Viewer shows how "hum" and "undertone" have occurred on timeline