Word.ws English Dictionary

ultradeep

ultradeep adjective: very deep; of utmost deepness; superdeep.

Adjective

ultradeep (not comparable)

  1. Very deep; of utmost deepness; superdeep.
    • Continental scientific drilling is an important endeavor, in that it provides information related to the causes of earthquakes and volcanic eruptions, and the occurrence of energy and mineral resources. Continental drilling involves both shallow— 1 to 3 miles— and ultradeep drill holes— 9 to 12...1988, United States Congress, Congressional Record, Congress, page 11915
    • West Texas’ future holds more ultradeep wildcats, some successes in Sheffield channel. This will prompt a new look at the Delaware and Val Verde basins.1958, United States Congress, The Oil and Gas Journal: Volume 56, Issue 4, PennWell Corporation, page 153

Examples of ultradeep in a sentence

  • Continental drilling involves both shallow— 1 to 3 miles— and ultradeep drill holes— 9 to 12 miles through the upper continental crust.1988, United States Congress, Congressional Record, Congress, page 11915:
  • And, during the equally long night the surface of the moon lies in an ultradeep freeze, calculated to be 240°F. below zero.1962, Joseph Allen Hynek, Challenge of the Universe, Scholastic Book Services, pages 40-41:

Forms of ultradeep

alternative formultra-deep
alternative formultra deep

Origin of ultradeep

From ultra- + deep.

Questions about ultradeep

What does ultradeep mean?
Ultradeep means very deep; of utmost deepness; superdeep.
How do you use ultradeep in a sentence?
Continental drilling involves both shallow— 1 to 3 miles— and ultradeep drill holes— 9 to 12 miles through the upper continental crust.
What part of speech is ultradeep?
Ultradeep is an adjective.

Words near ultradeep in the dictionary

  1. ultracytochemically
  2. ultradangerous
  3. ultradarwinism
  4. ultradarwinist
  5. ultradarwinists
  6. ultradeep
  7. ultradeformable
  8. ultradelicate
  9. ultradeluxe
  10. ultrademocratic
  11. ultradense

Source and license

Adapted from Wiktionary: ultradeep (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.

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