(noun, adjective, verb, adverb)


1. marked by firm determination or resolution; not shakable

- firm convictions

- a firm mouth

Similar word(s): resolute, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering

2. not soft or yielding to pressure

- a firm mattress

- the snow was firm underfoot

Similar word(s): hard, solid

3. strong and sure

- a firm grasp

Similar word(s): forceful, strong

4. not subject to revision or change

- a firm contract

- a firm offer

Similar word(s): settled

5. (of especially a person's physical features) not shaking or trembling

- his voice was firm and confident

- a firm step

Similar word(s): steady

6. not liable to fluctuate or especially to fall

- stocks are still firm

Similar word(s): stable, steady, unfluctuating

7. securely established

- holds a firm position as the country's leading poet

Similar word(s): secure

8. possessing the tone and resiliency of healthy tissue

- firm muscles

Similar word(s): healthy

9. securely fixed in place

- the post was still firm after being hit by the car

Similar word(s): fixed, fast, immobile

10. unwavering in devotion to friend or vow or cause

- a firm ally

Similar word(s): faithful, fast, loyal, truehearted

Sentences with firm as an adjective:

- It's good to have a firm grip when shaking hands.

- a firm believer; a firm friend; a firm adherent

- firm flesh; firm muscles, firm wood; firm land (i.e. not soft and marshy)


1. with resolute determination

- we firmly believed it

- you must stand firm

Similar word(s): firmly, steadfastly, unwaveringly


1. the members of a business organization that owns or operates one or more establishments

Similar word(s): house

Definition categories: group, business, concern


1. become taut or tauter

- Your muscles will firm when you exercise regularly

Similar word(s): tauten

Definition categories: change, tighten

2. make taut or tauter

Similar word(s): tauten

Definition categories: change, fasten, tighten