Staunch means very loyal and committed in attitude, often used to describe a person who firmly holds to a belief or principle and does not waver. It can also refer to something that is solid, sturdy, or watertight, and cannot be easily moved or broken.


US English

UK English

Part of Speech



faithful, steadfast, resolute, unwavering, unswerving, committed, dependable, firm, strong, determined, reliable


disloyal, unfaithful, treacherous, unreliable, wavering, vacillating, unstable, weak, feeble, unsteady, unreliable

Word Forms

Part of Speech Words
Noun staunchnesses, staunchness
Verb staunched, staunching, staunch, staunches
Adjective staunch
Adverb staunchly

Example Sentences

  • Despite the challenges, Mary remained staunch in her support of the cause.

  • The staunch walls of the castle had withstood many attacks.

  • He was a staunch believer in the value of hard work and perseverance.

  • Despite facing numerous setbacks and obstacles, Sarah remained a staunch advocate for environmental conservation, consistently speaking out against deforestation, organizing protests, and dedicating her life to protecting the planet’s delicate ecosystems for future generations to come.


The word staunch comes from the Old French estanche meaning “watertight” or “obstructed”. It is commonly used to describe someone who is loyal and committed to a particular cause, belief, or principle, and who will not be easily swayed or influenced. This could be a political or religious conviction, a personal philosophy, or a relationship. A staunch supporter or defender is someone who is willing to stand up for what they believe in, even in the face of opposition or adversity.

The word staunch is also used to describe something that is strong, solid, or dependable. For example, a staunch ally is one that can be relied on to provide support or assistance, and a staunch bridge is one that is sturdy and secure. In this sense, staunch is often used to describe physical structures, such as walls, fortresses, and dams, which are designed to withstand external pressures and resist collapse.

Staunch is a versatile word that can be used in a variety of contexts, from describing a person’s character and beliefs to describing physical objects and structures. It is often used in political and social discourse, as well as in everyday conversation, to convey a sense of commitment, loyalty, and strength.