Adjective

(en adjective)

Existing in or constructed from fantasy; of or relating to fantasy; fanciful.

He told fantastic stories of dragons and goblins.

His fantastic post-college plans had all collapsed within a year of graduation.

She had a fantastic view of her own importance that none of her colleagues shared.

Not believable; implausible; seemingly only possible in fantasy.

The events were so fantastic that only the tabloids were willing to print them.

She entered the lab and stood gaping for a good ten minutes at the fantastic machinery at work all around her.

Resembling fantasies in irregularity, caprice, or eccentricity; irregular; grotesque.

* T. Gray

There at the foot of yonder nodding beech, / That wreathes its old fantastic roots so high.

Wonderful; marvelous; excellent; extraordinarily good or great (used especially as an intensifier ).

"I had a simply fantastic vacation, and I can't wait to tell you all about it!"

Adjective

(en adjective)

Exceeding the bounds of something; roving; hence, foreign.

* (William Shakespeare)

The extravagant and erring spirit hies / To his confine.

Extreme; wild; excessive; unrestrained.

* Addison

There appears something nobly wild and extravagant in great natural geniuses.

*{{quote-book, year=1963, author=(Margery Allingham)

, title=(The China Governess), chapter=1 citation , passage=The half-dozen pieces […] were painted white and carved with festoons of flowers, birds and cupids. […] The bed was the most extravagant piece. Its graceful cane halftester rose high towards the cornice and was so festooned in carved white wood that the effect was positively insecure, as if the great couch were trimmed with icing sugar.}}

Exorbitant.

*{{quote-magazine, date=2013-06-08, volume=407, issue=8839, page=55, magazine=(The Economist)

, title= Obama goes troll-hunting , passage=According to this saga of intellectual-property misanthropy, these creatures [patent trolls] roam the business world, buying up patents and then using them to demand extravagant payouts from companies they accuse of infringing them. Often, their victims pay up rather than face the costs of a legal battle.}}

Profuse in expenditure; prodigal; wasteful.

(Bancroft)