rock hard

Firm as stone

Rock hard describes something extremely firm and unyielding, like stone.

The phrase applies literally to materials: The bread went rock hard overnight.

It also describes muscular definition: rock hard abs.

In sexual contexts, rock hard means fully erect: He was rock hard before she even touched him.

unyielding

solid

Firm matter state

stiff · dense · impenetrable · sturdy · tough · concrete · stone · diamond · frozen · petrified

determined

resolute

Fixed in purpose

immovable · staunch · unshakeable · unbending · tenacious · stubborn · indomitable · ironclad · steely · uncompromising

muscular

ripped

Torn or very muscular

bodybuilder · toned · sculpted · flex · pecs · gym · fitness · quads · swole · bulk

Categories
Opposites
physical hardness/firmness

rock hardsoft

Yielding to touch

squishy · pliable · mushy · spongy · pillowy

consistency/texture (especially food)

rock hardtender

Soft or sore

soft · mushy · overripe · melt-in-your-mouth · well-done

metaphorical resolve/certainty

rock hardwishy-washy

Lacking firmness or decisiveness

wavering · uncertain · soft · weak · flimsy

Family

hard, rock, rocky, hardly, harden, rocks, hardship, hardness, hardened

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated PG