overplay your hand, stubborn, vast, heavy (TO A GREAT DEGREE)

"I'm extremely disappointed in Jerry Yang," said Gordon Crawford, a portfolio manager at Capital Research Global Investors, which owns over 6% of Yahoo's shares. "I think he overplayed a weak hand. And I'm even more disappointed in the independent directors who were not responsive to the needs of independent shareholders."

2008.5  Yahoo Chief Says Microsoft Was the Stubborn One

By BRAD STONE and MIGUEL HELFT 6:16 PM ET

Jerry Yang said Yahoo was open to Microsoft all along but said he felt that the company he co-founded was simply worth more than what Microsoft put on the table.

There was heavy irony in the occasion.

The transaction had faced stiff opposition in Brussels from Google rivals including Microsoft Corp. and Yahoo Inc., as well as privacy advocates who fretted that a combined company would control a vast storehouse of data on Web users and their surfing habits.


vast
adjective
extremely big:
A vast audience watched the broadcast.
The amount of detail the book contains is vast.
The people who have taken our advice have saved themselves vast amounts/sums of money.
The vast majority of pupils attend state-funded schools.
也有人開玩笑用 vast minority 說"極少數"....
vastly 
adverb
vastly different
vastly superior
vastly improved

heavy (TO A GREAT DEGREE) 

adjective

1 (especially of something unpleasant) of very or unusually great force, amount or degree:

a heavy blow to the head

heavy fighting

heavy traffic

heavy rain/snow

a heavy smoker/drinker

a heavy sleeper

2 heavy seas sea which is rough with large waves

3 OLD-FASHIONED SLANG describes something such as a situation that is dangerous or unpleasant:

Then the police arrived and things got really heavy.

heavily 

adverb

to a great degree:

The terrorists are heavily armed.

The compound is heavily guarded.

She's heavily involved in the project.

heaviness 

noun [U]

when something happens or is done to a great degree

stubborn
adjective MAINLY DISAPPROVING ━━ a. 頑固な; 頑強な; 手に負えない, 扱いにくい.
1 describes someone who is determined to do what they want and refuses to do anything else:
They have massive rows because they're both so stubborn.

2 Things that are stubborn are difficult to move, change or deal with:
He was famed for his stubborn resistance and his refusal to accept defeat.
Stubborn stains can be removed using a small amount of detergent.

stubbornly
adverb MAINLY DISAPPROVING
She stubbornly refused to sign the document.

stubbornness
noun [U] MAINLY DISAPPROVING

overplay
verb [T]
to make something seem more important than it really is:
I think she's overplaying the significance of his remarks.

overplay your hand
to spoil your chance of success by saying or doing too much