Adjective

(en adjective)

causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment

difficult to defeat or overcome

* {{quote-news

, year=2012 , date=May 9 , author=John Percy , title=Birmingham City 2 Blackpool 2 (2-3 on agg): match report , work=the Telegraph citation , page= , passage=Holloway has unfinished business in the Premier League after relegation last year and he will make a swift return if he can overcome West Ham a week on Saturday. Sam Allardyce, the West Ham manager, will be acutely aware that when the stakes are high, Blackpool are simply formidable .}}

Adjective

(en adjective)

(of people) Very high-spirited; extremely energetic and enthusiastic.

* 1882 , , "The Lady or the Tiger?":

He was a man of exuberant fancy, and, withal of an authority so irresistible that, at his will, he turned his varied fancies into facts.

* 1961 , , Catch-22 :

She was a tall, earthy, exuberant girl with long hair and a pretty face.

(of things that grow) Abundant, luxuriant, profuse, superabundant.

* 1972 , Ken Lemmon, "Restoration Work at Studley Royal," Garden History , vol. 1, no. 1, pp. 22:

The County Architect's Department is starting to pleach trees to open up these vistas, now almost hidden by the exuberant growth.