firm
1 Americanadjective
-
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.
- Synonyms:
- confirmed
-
steadfast or unwavering, as persons or principles.
firm friends.
- Synonyms:
- reliable, staunch, immovable, determined
-
indicating firmness or determination.
a firm expression.
-
not fluctuating much or falling, as prices, values, etc..
The stock market was firm today.
verb (used with object)
-
to make firm; tighten or strengthen (sometimes followed byup ).
to firm up one's hold on something.
-
to steady or fix (sometimes followed byup ).
to firm up prices.
verb (used without object)
-
to become firm or fixed (sometimes followed byup ).
Butter firms by churning.
-
(of prices, markets, etc.) to recover; become stronger, as after a decline (sometimes followed byup ).
Stock prices firmed again today.
adverb
adjective
-
not soft or yielding to a touch or pressure; rigid; solid
-
securely in position; stable or stationary
-
definitely established; decided; settled
-
enduring or steady; constant
-
having determination or strength; resolute
-
(of prices, markets, etc) tending to rise
adverb
verb
-
(sometimes foll by up) to make or become firm
-
(intr) horse racing (of a horse) to shorten in odds
noun
-
a business partnership
-
any commercial enterprise
-
a team of doctors and their assistants
-
slang
-
a gang of criminals
-
a gang of football hooligans
-
Related Words
Firm, hard, solid, stiff are applied to substances that tend to retain their form unaltered in spite of pressure or force. Firm often implies that something has been brought from a yielding state to a fixed or elastic one: An increased amount of pectin makes jellies firm. Hard is applied to substances so resistant that it is difficult to make any impression upon their surface or to penetrate their interior: as hard as a stone. Solid is applied to substances that without external support retain their form and resist pressure: Water in the form of ice is solid. It sometimes denotes the opposite of hollow: a solid block of marble. Stiff implies rigidity that resists a bending force: as stiff as a poker.
Other Word Forms
Etymology
Origin of firm1
First recorded in 1300–50; from Latin firmus; replacing Middle English ferm(e), from Middle French ferm(e), from Latin
Origin of firm2
First recorded in 1565–75; from Spanish firma “signature” (hence, legal name of a partnership), noun derivative of firmar “to sign,” from Latin firmāre “to strengthen, confirm,” derivative of firmus firm 1
Explanation
The adjective firm describes something that's strong and unwavering. If your great Aunt Martha had a firm belief that children should be seen and not heard, you and your siblings might have spent your childhood driving her crazy. Something that is solid can also be described as firm. When you take a stick of butter out of the fridge, it's firm, and it needs to soften before you cream it with sugar. Another definition for the adjective firm is unwavering or loyal. You might be a firm supporter of your favorite baseball team, even though they haven't made it to a World Series in more than twenty years.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Frenchwoman broke again to go 5-4 up, but Raducanu held firm to stop Parry from serving out the victory on two occasions and force a tie-break.
From BBC • May 19, 2026
Salon has tried to contact Chopra several times through the public relations firm that represents him, but has not received a response.
From Salon • May 19, 2026
The firm plans to eventually shift more advisory work to the platform from its existing one, meaning Claude will span the workflows of two of KPMG’s three service lines.
From The Wall Street Journal • May 19, 2026
The law firm added "several hundred claims remain ongoing for those who chose not to accept the universal offer".
From BBC • May 19, 2026
When reporters showed up to get the scoop, her bereaved sons insisted that Kate “died a firm believer” in the spirits.
From "American Spirits" by Barb Rosenstock
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
