Adjective

(en adjective)

awe-inspiring; terrific.

Notable for its size, power, or excellence.

Van Beethoven's ninth symphony is a tremendous piece of music.

Extremely large (in amount, extent, degree, etc.) or great

There was a tremendous outpouring of support.

Adjective

(en adjective)

(not comparable) Of or relating to astronomy.

* 1839 , (Edgar Allan Poe), ,

Finally, all men saw that astronomical knowledge lied not, and they awaited the comet.

* {{quote-magazine, date=2012-03

, author= , title=Pixels or Perish , volume=100, issue=2, page=106 , magazine= citation , passage=Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.}}

(comparable) Very large; of vast measure.

* 1959 , (Andre Norton), ,

At the moment he wondered why anyone would want to visit Khatka, let alone pay some astronomical sum for the privilege.