v. 1
To embarrass (someone) greatly; to confuse; to perplex; to disconcert.
Don't worry. Your joke did not really discomfit me.
v. 2
To defeat the plans or hopes of; to frustrate; disconcert.
v. 3
To defeat completely; to rout.

Related words

Forms

Past participle: discomfited
e.g. discomfited → disconcerted, confounded, abashed, humbled…

humble However humble it is, there is no place like home.
disconcert I don't mean to disconcert you, but there's a spider in your hair.
abash The titter that rippled around the room appeared to abash the boy.
checkmate Tom looked at me triumphantly and said, "Checkmate."

Use in printed books, per decade from 1850 to 2019.

3 letters: vex¹
4 letters: foil¹, rout¹, balk¹
5 letters: upset², spoil¹, elude², baulk, abash²
6 letters: defeat², humble², flurry², subdue², thwart¹, baffle², untune
7 letters: conquer², disturb², chagrin², perturb², perplex², mortify³, fluster²
8 letters: overcome³, dishonor³, confound², vanquish², bewilder³
9 letters: overthrow³, embarrass³, humiliate⁴, frustrate², checkmate², overpower⁴, dishonour
10 letters: counteract³, disconcert³, discompose

The small number after each word is its number of syllables (upset² = 2 syllables).