not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid

firm ground; firm texture.

securely fixed in place.

not shaking or trembling; steady

a firm voice.

not likely to change; fixed; settled; unalterable

a firm belief.

steadfast or unwavering, as persons or principles

firm friends.

indicating firmness or determination

a firm expression.

not fluctuating much or falling, as prices, values, etc.

The stock market was firm today.

to make firm; tighten or strengthen (sometimes fol. by up )

to firm up one's hold on something.

to steady or fix (sometimes fol. by up )

to firm up prices.

to become firm or fixed (sometimes fol. by up )

Butter firms by churning.

(of prices, markets, etc.) to recover; become stronger, as after a decline (sometimes fol. by up )

Stock prices firmed again today.

firmly

He stood firm.

adverb

flexibly , movably , weakly , changeably , indefinitely , waveringly

adverb

durably , enduringly , fast , fixedly , hard , inflexibly , like a rock , motionlessly , rigidly , securely , solid , solidly , soundly , stably , steadily , stiffly , strongly , substantially , thoroughly , tight , tightly , unflinchingly , unshakeably , adamantly , constantly , decisively , doggedly , indefatigably , intently , obdurately , obstinately , perseveringly , persistently , pertinaciously , purposefully , resolutely , staunchly , steadfastly , stolidly , strictly , stubbornly , tenaciously , through thick and thin , unchangeably , unwaveringly , with heavy hand