challenged

adj 0.832

difficult

adj 0.726

unchallenging

adj 0.684

troubling

adj 0.674

demanding

adj 0.674

daunting

adj 0.668

tricky

adj 0.659

problematic

adj 0.656

confronting

adj 0.653

provoking

adj 0.647

problematical

adj 0.643

problem

adj 0.637

tough

adj 0.635

questioning

adj 0.634

threatening

adj 0.630

controversial

adj 0.620

troublesome

adj 0.619

puzzling

adj 0.613

intriguing

adj 0.608

stressful

adj 0.605

disturbing

adj 0.605

intimidating

adj 0.604

confusing

adj 0.604

confrontational

adj 0.602

formidable

adj 0.597

exciting

adj 0.595

frustrating

adj 0.595

defiant

adj 0.594

engaging

adj 0.592

contested

adj 0.590

confrontive

adj 0.589

battling

adj 0.589

risky

adj 0.588

chancy

adj 0.588

audacious

adj 0.587

adventurous

adj 0.586

competing

adj 0.586

contentious

adj 0.584

tempting

adj 0.584

competitive

adj 0.584

thrilling

adj 0.581

disconcerting

adj 0.580

disruptive

adj 0.579

argumentative

adj 0.577

upsetting

adj 0.576

troubled

adj 0.574

arduous

adj 0.574

taxing

adj 0.574

dangerous

adj 0.572

strenuous

adj 0.569

imposing

adj 0.569

unchallengeable

adj 0.569

questionable

adj 0.569

complicated

adj 0.569

surprising

adj 0.568

contestable

adj 0.568

conflicting

adj 0.568

baffling

adj 0.568

dilemmatic

adj 0.568

attacking

adj 0.567

facing

adj 0.567

troublemaking

adj 0.566

scary

adj 0.564

stimulating

adj 0.561

unchallenged

adj 0.560

disputant

adj 0.560

controvertible

adj 0.560

distressing

adj 0.560

trying

adj 0.559

motivating

adj 0.557

contrasting

adj 0.557

rigorous

adj 0.557

discouraging

adj 0.557

rebellious

adj 0.556

arousing

adj 0.556

arguable

adj 0.556

edgy

adj 0.556

adversarial

adj 0.556

punishing

adj 0.556

hard

adj 0.555

alarming

adj 0.554

disputatious

adj 0.553

hardball

adj 0.552

jarring

adj 0.552

startling

adj 0.552

contraversive

adj 0.551

opposing

adj 0.551

ethically challenged

adj 0.551

compelling

adj 0.551

uphill

adj 0.551

shocking

adj 0.550

aggressive

adj 0.550

dicey

adj 0.550

interesting

adj 0.550

physically challenged

adj 0.550

frightening

adj 0.549

stirring

adj 0.548

encouraging

adj 0.547

discomfiting

adj 0.546

worrying

adj 0.546