Synonyms of backbone

backbone

noun

ˈbak-ˈbōn 

1

as in spine

a column of bones supporting the trunk of a vertebrate animal

found the backbone of a fish lying on the beach

Synonyms & Similar Words

• spine
• back
• vertebra
• spinal column
• vertebral column
• chine
• spinal cord

2

as in courage

the strength of mind that enables a person to endure pain or hardship

it takes backbone to stand up to the kind of suffering that some cancer patients must endure

Synonyms & Similar Words

• courage
• fortitude
• fiber
• stamina
• grit
• guts
• bravery
• determination
• courageousness
• spunk
• endurance
• pluck
• nerve
• constancy
• intestinal fortitude
• grittiness
• tolerance
• resolution
• resoluteness
• purposefulness
• stoutness
• daring
• valor
• fearlessness
• mettle
• gallantry
• heart
• spirit
• brass
• sufferance
• forbearance
• audacity
• boldness
• dauntlessness
• intrepidity
• chutzpah
• temerity
• gall
• intrepidness
• doughtiness
• greatheartedness
• effrontery
• hardihood
• cheek
• nerviness

Antonyms & Near Antonyms

• spinelessness
• vacillation
• indecisiveness
• irresolution
• cowardice
• timidity
• pusillanimity
• cowardliness
• irresoluteness
• faintheartedness
• timorousness
• cravenness
• dastardliness

Example Sentences

Recent Examples of backbone

In Salisbury, the Eastern Shore's biggest city, about 10% of the 33,000 residents are Haitian, many of them employed under TPS as farmworkers, caregivers and in the poultry plants that are the region’s economic backbone. — ABC News, 5 Aug. 2026

Rods with substantial backbone and reels spooled with strong line and even stronger leaders are essential. — Ken Perrotte, USA Today, 4 Aug. 2026

What began as one contract became the backbone of Ecuador’s domestic security apparatus. — Natalia Cote-Muñoz, Foreign Affairs, 3 Aug. 2026

Agustin framed the setting as a living snapshot of the Sierra foothills’ agricultural backbone — a landscape shaped over generations by ranching, farming and, eventually, vineyards. — Sacbee.com, 1 Aug. 2026