Difference between Blunder and Goof

BLUNDER vs GOOF: NOUN

Synonyms Error, Mistake, Blunder, Bull. An error is a wandering from truth, primarily in impression, judgment, or calculation, and, by extension of the idea, in conduct; it may be a state. A mistake is a false judgment or choice; it does not, as error sometimes does, imply moral obliquity, the defect being placed wholly in the wisdom of the actor, and in its treatment of this defect the word is altogether gentle. Blunder is a strong word for a mistake which is stupid, a gross error in action or speech. A bull is a blunder in language, involving generally a very obvious and comical contradiction; but the word is sometimes applied to any particularly inapt or ludicrously inappropriate remark.
A mistake made through precipitance or mental confusion; a gross or stupid mistake.
A mistake typically caused by ignorance or carelessness.
An embarrassing mistake
A clumsy or embarrassing mistake.
A gross error or mistake, resulting from carelessness, stupidity, or culpable ignorance.
Confusion; disturbance.

A child molester.
A foolish person
As a specific usage in film, an error made during production which finds its way into the final release.
A mistake or error
A stupid fool.
A careless mistake; a slip.
An incompetent, foolish, or stupid person.
A man who is a stupid incompetent fool
A person who amuses others by ridiculous behavior

To move in an awkward, clumsy manner; to flounder and stumble.
To make a gross error or mistake.
To find or reach as if by an accident involving more or less stupidity, -- applied to something desirable; as, to blunder on a useful discovery.
To utter (something) stupidly or thoughtlessly.
To make a mistake in; botch.
To move clumsily or haltingly.
To make a mistake.

To utter thoughtlessly or in a blundering manner; blurt out: generally with out: as, to blunder out an excuse.
To do or make faultily or erroneously; make mistakes in through ignorance or stupidity; bungle.
To injure or destroy by blundering; mismanage: as, “to darken or blunder the cause,”
To confound; confuse; distract; cause to make blunders: as, “to blunder an adversary,”
To mix (things) confusedly; confuse.
To make a gross mistake, especially through mental confusion; err widely or stupidly.
To move or act blindly, stupidly, or without direction or steady guidance; flounder; stumble: frequently with on or along.

Screw up, Bollix, Misdoing, Mishandle, Blow, Bobble, Muff, Sin, Stumble, Fumble, Blooper, Goof, Botch, Flub, Bungle

Goofball, Err, Slip, Error, Idiot, Snafu, Flub, Goose, Sin, Cuckoo, Boob, Fathead, Zany, Jackass, Blunder

Boob, Boner, Screw up, Bollix, Misdoing, Mishandle, Blow, Bobble, Sin, Fumble, Blooper, Goof, Botch, Flub, Bungle

Gaffe, Goofy, Goofball, Slip, Error, Idiot, Snafu, Flub, Goose, Sin, Boob, Fathead, Zany, Jackass, Blunder