| perturb(verb, upset, trouble, bother, disturb) |
| shake(verb, upset, bother, disturb, provoke) |
| stagger(verb, upset, beat, destroy, overcome) |
| stir(verb, confuse, baffle, perplex, bewilder) |
| stumble(verb, confuse, baffle, confound, perplex) |
| stun(verb, upset, beat, bother, disturb) |
| uncertainty(noun, fix, difficulty, anxiety, twist) |
| vexed question(noun, expression, idiom, trouble, difficulty) |
| abash(noun, verb, upset, trouble, bother) |
| boggle(shock, shake, amusement, throw, surprise) |
| brain-twister(noun, dilemma, riddle, paradox, enigma) |
| circumvent(verb, cross, avoid, escape, frustrate) |
| complexity(noun, difficulty, confusion, shame, question) |
| complication(noun, trouble, worry, anxiety, struggle) |
| contradiction(noun, absurdity, inconsistency) |
| cross(verb, frustrate, blank, thwart, baffle) |
| crush(verb, beat, overcome, overpower, devastate) |
| decipher(resolve, crack, answer) |
| difficult question(noun, trouble, challenge, question, riddle) |
| discompose(verb, upset, trouble, bother, disturb) |