Synonyms for Confuse:

adj.

obscure (adjective)
obfuscate.

n.

deepen, defy, be (as) clear as mud, be beyond someone. addle, clear, divert, dizzy, feelings, mystify, preoccupy, puzzle. blunder, discomfort, discountenance, err, fall short, faze, let down, miss, pain, stumble, trip-up, slip up. correct. ball up, order, snafu, mess up. confuse (noun)
bedevil, befuddle, confound, discombobulate, disconcert, flurry, fox, fuddle, jumble, mistake, throw.
puzzle (noun)
addle, astonish, ball up, blend, darken, daze, dismay, disorient, distract, dumbfound, embroil, encumber, faze, flummox, lead astray, misinform, mislead, mix, mystify, nonplus, obfuscate, rattle, stir up, unhinge, unsettle, worry, foul up, cross up, make a hash of, make a mess of, addle the wits, put at a loss, render uncertain, throw off the scent.

v.

amaze (verb)
dumbfound.
bewilder someone (verb)
addle, astonish, baffle, bedevil, befuddle, cloud, clutter, complicate, confound, darken, daze, discompose, disconcert, discountenance, disorient, distract, faze, fluster, fuddle, involve, lead astray, misinform, mislead, muddle, mystify, nonplus, obscure, perplex, perturb, puzzle, rattle, stir up, trouble, unhinge, unsettle, upset, worry, mess up, render uncertain.
cognition (verb)
confound.
complicate (verb)
complicate, entangle, involve, snarl, tangle.
confuse (verb)
baffle, cloud, fluster, misconstrue, mistake, obscure, perplex.
derange (verb)
agitate, blur, botch, capsize, churn, clutter, confound, convulse, derange, disarrange, discompose, dishevel, dislocate, disorder, disorganize, displace, disturb, ferment, hash, jumble, meddle, mess, mislay, misplace, muddle, muss, perturb, ripple, roil, roughen, ruffle, rummage, rumple, scatter, scramble, swirl, tamper, toss, tousle, trouble, tumble, upset, whip, whisk, mix up.
disorder (verb)
clutter, disarrange, disorder, disorganize, scatter.
misinterpret (verb)
deform, distort, garble, misinterpret, misquote, misread, misrepresent, misunderstand, twist.
mix up; involve (verb)
blend, disarrange, discombobulate, disorder, disorganize, embroil, encumber, entangle, jumble, mistake, rumple, tangle, tousle, tumble.

Other synonyms:

addle, disorient, preoccupy, foul up. defy, distract, faze, mix, mystify. deepen, discountenance, divert, puzzle. dizzy. agitate
flurry.
baffle
nonplus.
disorder
rummage.
embroil
encumber.
entangle
embroil.
muddle
ball up.
Other relevant words:
addle, astonish, ball up, bedevil, befuddle, blend, blunder, correct, darken, daze, deepen, defy, discombobulate, discomfort, disconcert, discountenance, dismay, disorient, distract, divert, dizzy, dumbfound, embroil, encumber, err, faze, flummox, flurry, fox, fuddle, lead astray, let down, misinform, mislead, miss, mix, mystify, nonplus, obfuscate, preoccupy, puzzle, rattle, snafu, stir up, stumble, throw, unhinge, unsettle, worry, addle the wits, render uncertain.

Usage examples for confuse

  1. It would confuse them more when he walked right off their instruments. – Tangle Hold by F. L. Wallace
  2. We cannot agree with those who confuse this personage with the chief of the Kolchytes. – The Complete Historical Romances of Georg Ebers by Georg Ebers
  3. This is to confuse their minds, cause them to forget their failure, and thus to make another attempt. – African Camp Fires by Stewart Edward White