challenge

noun 0.666

contender

noun 0.648

champion

noun 0.623

competitor

noun 0.608

champ

noun 0.597

chaser

noun 0.586

battler

noun 0.585

rival

noun 0.580

rechallenge

noun 0.579

challan

noun 0.568

opponent

noun 0.567

confronter

noun 0.563

venturer

noun 0.563

defeater

noun 0.562

trailblazer

noun 0.561

struggler

noun 0.558

adversary

noun 0.554

explorer

noun 0.549

attacker

noun 0.548

vanquisher

noun 0.545

disrupter

noun 0.544

adventurer

noun 0.542

climber

noun 0.540

racer

noun 0.539

chancellor

noun 0.537

defender

noun 0.537

debater

noun 0.537

chandler

noun 0.532

innovator

noun 0.532

avenger

noun 0.532

lancer

noun 0.527

destroyer

noun 0.526

chamberlain

noun 0.524

conqueror

noun 0.523

rebel

noun 0.523

contestant

noun 0.522

provoker

noun 0.521

crusader

noun 0.521

obstacle

noun 0.519

invader

noun 0.518

defiant

noun 0.517

collider

noun 0.516

chatterer

noun 0.516

groundbreaker

noun 0.516

flanker

noun 0.514

conquerer

noun 0.513

antagonist

noun 0.510

doubter

noun 0.510

fighter

noun 0.510

pursuer

noun 0.509

insurgent

noun 0.509

dark horse

noun 0.508

achiever

noun 0.508

searcher

noun 0.508

seeker

noun 0.508

thrasher

noun 0.508

chieftain

noun 0.507

striver

noun 0.507

clash

noun 0.507

striker

noun 0.507

thunderer

noun 0.506

bombardier

noun 0.505

victor

noun 0.504

troublemaker

noun 0.504

troubleshooter

noun 0.504

buster

noun 0.504

advancer

noun 0.503

disputant

noun 0.503

charioteer

noun 0.503

archrival

noun 0.502

aggressor

noun 0.502

campaigner

noun 0.502

puzzler

noun 0.502

smasher

noun 0.502

confrontation

noun 0.501

world-beater

noun 0.500

world champion

noun 0.500

candidate

noun 0.500

chiller

noun 0.500