Word.ws English Dictionary

undertail

undertail adjective: beneath a tail.

undertail: beneath a tail
Image: This Photo was taken by Timothy A. Gonsalves . Feel free to, CC BY-SA 4.0, via Wikimedia Commons

Adjective

undertail (not comparable)

  1. Beneath a tail.
  2. On the underside of the tail.
    Synonyms:
    subcaudal

Noun

undertail (plural undertails)

  1. The ventral part of the tail of a bird.
  2. The underside of a tail.
    • The whiptail wallaby is a slender, long-tailed, long-limbed macropod. […] its belly and the base of its undertail are white; the rest of its tail, feet and paws are dark.2005, Reader's Digest, Encyclopedia of Australian Wildlife

Synonyms of undertail

Forms of undertail

pluralundertails

Origin of undertail

From under- + tail.

Questions about undertail

What does undertail mean?
Undertail means beneath a tail.
What part of speech is undertail?
Undertail can be an adjective or a noun.

Words near undertail in the dictionary

  1. Undersåker
  2. undertag
  3. undertagged
  4. undertagging
  5. undertags
  6. undertail
  7. undertails
  8. undertakable
  9. undertake
  10. undertaked
  11. undertakement

Source and license

Adapted from Wiktionary: undertail (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-undertail.wav.

Cite this entry: “undertail.” Word.ws, https://word.ws/undertail. Based on Wiktionary, CC BY-SA 4.0.