1 tall, lofty, elevated, towering:
High mountains surround the valley.
2 extreme, excessive, extraordinary, exorbitant, outrageous, Colloq steep, stiff:
Houses in that district are fetching high prices.
3 costly, dear, expensive, high-priced:
Shares are not as high as they were before the crash.
4 great, huge, enormous, considerable, strong; violent, turbulent:
These wires carry high voltages. The high winds blew down trees.
5 exalted, elevated, lofty, superior, high-class:
With insider trading, theft became a high art in the financial world
6 consequential, important, grave, serious, weighty, momentous, heinous; capital:
His activities constitute high treason.
7 high-pitched, high-frequency, squeaky, acute, treble, soprano; shrill, strident, sharp, penetrating, piercing, ear-splitting:
The higher notes make my radio speaker vibrate. She has an irritatingly high voice
8 cheerful, exuberant, elated, boisterous, exhilarated, hilarious, merry, excited:
I find his persistent high spirits rather depressing.
9 euphoric, intoxicated, inebriated, drunk, drugged, Colloq loaded, tipsy, turned on, on a trip, Slang stoned, spaced out, Brit squiffy, US spacy, squiffed:
They got high sniffing glue.
10 gamy, tainted, aged, ripe, Slang Brit pongy:
He likes to hang venison till it is quite high.
11 chief, leading, important, principal, foremost:
He regards himself as the high priest of women's fashion.
12 elaborate, luxurious, grand, extravagant, lavish, rich, prodigal, sybaritic:
With her millions she can now enjoy the high life.
13 considerable, favourable, great:
She is held in high esteem by her colleagues.
14 far up; great in extent:
Daedalus warned Icarus not to fly so high. I was willing to go as high as 20,000 for the painting.
15 peak, record, height, maximum, acme, apex:
Employment is expected to reach a high next summer.
16 intoxication, altered consciousness:
The high lasts till the drug wears off.
The high passing over the country will bring fair weather.