hardback

adj 0.875

hardbound

adj 0.831

casebound

adj 0.736

softbound

adj 0.715

leatherbound

adj 0.694

paperback

adj 0.661

hardwood

adj 0.623

perfect-bound

adj 0.617

hard

adj 0.616

case hardened

adj 0.598

hardy

adj 0.573

hard-set

adj 0.570

hard-boiled

adj 0.570

hardened

adj 0.563

hardline

adj 0.550

cover

adj 0.548

leather-hard

adj 0.547

hard put

adj 0.545

textbook

adj 0.543

hard-nosed

adj 0.543

hardenable

adj 0.533

hardball

adj 0.532

rock hard

adj 0.527

paper

adj 0.526

covered

adj 0.526

hardheaded

adj 0.523

leather

adj 0.522

coriaceous

adj 0.520

hard-and-fast

adj 0.519

diehard

adj 0.518

verbatim

adj 0.517

broadsheet

adj 0.515

unhardened

adj 0.513

hard-featured

adj 0.513

protected

adj 0.513

heavy

adj 0.513

sturdy

adj 0.512

high-backed

adj 0.512

hidebound

adj 0.509

coverless

adj 0.508

ironclad

adj 0.508

headed

adj 0.507

leathery

adj 0.507

ironbound

adj 0.507

hardpacked

adj 0.506

olid

adj 0.504

buttoned-up

adj 0.504

hardpressed

adj 0.503

kindle

adj 0.503

solid

adj 0.502

manuscript

adj 0.500