Treasonous: meaning, definitions and examples

Used in formal or legal settings to describe actions that betray one's country or government.

• The president accused the general of being involved in treasonous activities

Describes actions or people that betray trust, often with an implication of danger or deceit; can also describe dangerous physical conditions.

• His treacherous behavior led to the downfall of the entire team
• The mountain roads were treacherous after the storm

Used similarly to 'treasonous', often in dramatic or literary contexts to describe someone who betrays a country or trust.

• The traitorous soldier leaked the confidential information to the enemy

Applied in everyday situations to describe someone who breaks loyalty or trust in personal relationships or informal settings.

• She felt disloyal when she told her friend's secret

Mostly used in personal relationships, implying a breach of trust or infidelity.

• He was heartbroken when he discovered his partner was faithless

Used to describe actions or behavior against one's own country. It is often used in legal or political contexts.

• The official was charged with treasonous activities against the state.
• His treasonous actions were considered a betrayal by his fellow citizens.

Commonly used in the context of romantic relationships to describe someone who is not loyal or has cheated. It conveys a sense of personal betrayal.

• He was unfaithful during their marriage, leading to their divorce.
• She discovered his unfaithful actions through a series of messages.

Used to describe someone who is deceitful and untrustworthy, often in a deeply treacherous way. It has a very strong negative connotation.

• The perfidious ally betrayed them at the last moment.
• Her perfidious nature made it difficult for anyone to trust her.

Refers to someone who is not loyal or trustworthy, often in a personal relationship. It carries a tone of disappointment and betrayal.

• She felt heartbroken after discovering he was a faithless partner.
• The faithless friend abandoned them in their time of need.

Describes something that is not true or genuine. It can apply to statements, people, or objects.

• His promise turned out to be false.
• The rumor was completely false and baseless.