bullheaded

adj 0.875

pigheaded

adj 0.825

headstrong

adj 0.811

stubborn

adj 0.779

obstinate

adj 0.759

hard-nosed

adj 0.754

obdurate

adj 0.744

hard-set

adj 0.740

hardhearted

adj 0.736

thickheaded

adj 0.720

unyielding

adj 0.679

stubborn as a mule

adj 0.675

hidebound

adj 0.664

stiff-necked

adj 0.658

bullet-headed

adj 0.654

hard

adj 0.650

mulish

adj 0.647

steadfast

adj 0.646

strong-willed

adj 0.642

adamant

adj 0.639

diehard

adj 0.638

inflexible

adj 0.638

wrongheaded

adj 0.637

wooden-headed

adj 0.637

hardened

adj 0.635

dogged

adj 0.633

pertinacious

adj 0.627

recalcitrant

adj 0.627

hardline

adj 0.626

rigid

adj 0.624

intransigent

adj 0.623

iron-hearted

adj 0.623

self-willed

adj 0.616

unbending

adj 0.615

hard-featured

adj 0.604

tenacious

adj 0.603

tough

adj 0.601

hardball

adj 0.601

hardy

adj 0.599

hotheaded

adj 0.598

hard-boiled

adj 0.598

hard as nails

adj 0.597

rock-ribbed

adj 0.593

stiff

adj 0.591

rock hard

adj 0.591

uncompromising

adj 0.586

staunch

adj 0.586

ornery

adj 0.585

untractable

adj 0.580

hard-and-fast

adj 0.578

headed

adj 0.576

hard put

adj 0.575

stouthearted

adj 0.574

determined

adj 0.572

indurated

adj 0.572

opinionated

adj 0.571

dogmatic

adj 0.570

intractable

adj 0.569

indurate

adj 0.568

hardback

adj 0.567

stony-faced

adj 0.565

stone deaf

adj 0.564

head

adj 0.564

perseverant

adj 0.564

obstreperous

adj 0.564

unflinching

adj 0.562

hardscrabble

adj 0.562

resistant

adj 0.561

flinty

adj 0.561

unrelenting

adj 0.560

muddle-headed

adj 0.560

foolhardy

adj 0.559

unheeding

adj 0.558

stalwart

adj 0.556

heavy-handed

adj 0.555

implacable

adj 0.554

unwavering

adj 0.553

sturdy

adj 0.553

unhardened

adj 0.553

refractory

adj 0.553

hard of hearing

adj 0.552

callous

adj 0.552

unforgiving

adj 0.551

resolute

adj 0.550

hardpacked

adj 0.550

blackheaded

adj 0.549

heavyhanded

adj 0.549

stolid

adj 0.548

hard-charging

adj 0.548

made of sterner stuff

adj 0.547

callused

adj 0.547

hardwood

adj 0.547

unswerving

adj 0.546

difficult

adj 0.546

airheaded

adj 0.545

uncooperative

adj 0.544

soft in the head

adj 0.543

hell-bent

adj 0.542

harsh

adj 0.541

clearheaded

adj 0.541