Difference between Blunder and Stumble

BLUNDER vs STUMBLE: NOUN

An embarrassing mistake
Confusion; disturbance.
A gross error or mistake, resulting from carelessness, stupidity, or culpable ignorance.
A clumsy or embarrassing mistake.
A mistake typically caused by ignorance or carelessness.
A mistake made through precipitance or mental confusion; a gross or stupid mistake.
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.

To make a mistake.
To move clumsily or haltingly.
To make a mistake in; botch.
To utter (something) stupidly or thoughtlessly.
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 move in an awkward, clumsy manner; to flounder and stumble.
To make a gross error or mistake.

To come upon accidentally or unexpectedly.
To proceed unsteadily or falteringly; flounder. : blunder.
To miss one's step in walking or running; trip and almost fall.
To make a mistake or mistakes; blunder.
To cause to stumble.
To act or speak falteringly or clumsily.
To strike or happen (upon a person or thing) without design; to fall or light by chance; -- with on, upon, or against.
To fall into a crime or an error; to err.
To walk in an unsteady or clumsy manner.
To trip in walking or in moving in any way with the legs; to strike the foot so as to fall, or to endanger a fall; to stagger because of a false step.

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.

To puzzle; perplex; embarrass; nonplus; confound.
To come accidentally or unexpectedly; chance; happen; light: with on or upon.
To take a false step or be staggered mentally or morally; trip, as against a stumbling-block; find an occasion of offense; be offended or tempted.
To move or act unsteadily or in a staggering manner; trip in doing or saying anything; make false steps or blunders, as from confusion or inattention: as, to stumble through a performance.
To slip or trip in moving on the feet; make a false step; strike the foot, or miss footing, so as to stagger or fall.
To cause to stumble; cause to trip; stagger; trip up.
Walk unsteadily, tripping repeatedly

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

Find, Dip, Fall, Tumble, Slip, Trip up, Slip up, Trip, Hit, Blunder, Lurch, Bumble, Stagger, Misstep, Falter

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

Faltering, Find, Dip, Fall, Tumble, Slip, Slip up, Trip, Hit, Blunder, Lurch, Bumble, Stagger, Misstep, Falter

Had to stumble over chairs all by myself.
And I always stumble back into the obvious.
Pure hearts stumble In my hands they crumble.
Geralt stumble upon the mysterious Adva of Brightwater.
Therefore, if food causes my brother to stumble, I will eat no meat forevermore, that I do not cause my brother to stumble.
Stubbornness, selfishness and pride are often across the road; they constantly stumble at us and make us stumble and sink into our relationships.
You stumble day and night, and the false prophets stumble with you; You have destroyed your own people!
You basically stumble right into the situation, or they stumble into you.
If we do, we will not only stumble ourselves but cause others to stumble as well.
If we stumble, others stumble, they follow our pattern.