[adjective] not soft or yielding to pressure; "a firm mattress"; "the snow was firm underfoot"; "solid ground" Synonyms: solid
[adjective] strong and sure; "a firm grasp"; "gave a strong pull on the rope" Synonyms: strong
[adjective] not subject to revision or change; "a firm contract"; "a firm offer"
[adjective] (of especially a person's physical features) not shaking or trembling; "his voice was firm and confident"; "a firm step"
[adjective] not liable to fluctuate or especially to fall; "stocks are still firm" Synonyms: steady, unfluctuating
[adjective] securely established; "an established reputation"; "holds a firm position as the country's leading poet" Synonyms: established
[adjective] marked by the tone and resiliency of healthy tissue; "firm muscles"
[adjective] pleasingly firm and fresh and making a crunching noise when chewed; "crisp carrot and celery sticks"; "a firm apple"; "crunchy lettuce" Synonyms: crisp, crunchy
[adjective] securely fixed in place; "the post was still firm after being hit by the car" Synonyms: fast, immobile
[adjective] unwavering in devotion to friend or vow or cause; "a firm ally"; "loyal supporters"; "the true-hearted soldier...of Tippecanoe"- Campaign song for William Henry Harrison; "fast friends" Synonyms: loyal, truehearted, fast