dark horse

noun 0.672

underachiever

noun 0.608

underling

noun 0.602

underprivileged

noun 0.601

underclassman

noun 0.599

runt of the litter

noun 0.587

unsung hero

noun 0.587

struggler

noun 0.574

underclass

noun 0.571

understudy

noun 0.565

underrate

noun 0.559

weakling

noun 0.558

doghouse

noun 0.556

undefeatable

noun 0.552

undercard

noun 0.551

hangdog

noun 0.550

ugly duckling

noun 0.548

top dog

noun 0.547

defeater

noun 0.546

outcast

noun 0.543

also-ran

noun 0.542

diamond in the rough

noun 0.538

underlier

noun 0.538

bulldog

noun 0.537

antihero

noun 0.537

second banana

noun 0.535

defeatist

noun 0.534

bottom feeder

noun 0.534

black sheep

noun 0.532

underhand

noun 0.531

underworld

noun 0.530

contender

noun 0.529

outsider

noun 0.527

uphill battle

noun 0.522

downer

noun 0.520

undergoer

noun 0.518

second fiddle

noun 0.516

bad guy

noun 0.516

backbencher

noun 0.515

loser

noun 0.514

undercut

noun 0.514

survivor

noun 0.513

defender

noun 0.511

fall guy

noun 0.511

champion

noun 0.511

inferior

noun 0.509

undercurrent

noun 0.508

underestimate

noun 0.507

puppy dog

noun 0.506

handicapper

noun 0.505

underpressure

noun 0.505

attack dog

noun 0.504

underbite

noun 0.504

underneath

noun 0.503

dodger

noun 0.502

oddball

noun 0.502

misfit

noun 0.501

sidekick

noun 0.501

undervalue

noun 0.500

invisible minority

noun 0.500