Unfaithful: meaning, definitions and examples

Used when someone is not loyal, especially in a romantic relationship.

• He felt heartbroken when he found out she was unfaithful
• She checked for messages that might prove he was unfaithful

Employed when someone is not supporting someone or something they are supposed to be loyal to.

• She felt disloyal to the company by considering a job offer elsewhere
• His disloyal behavior was noticed by his peers

Used when someone is deceitful or dangerous, often implying a sense of hidden danger or betrayal.

• The treacherous waters were hard to navigate
• His treacherous actions led to the downfall of the organization

Used to describe someone who lacks fidelity or loyalty, often with a sense of moral judgment.

• The faithless knight abandoned his king in his time of need
• She was hurt by his faithless promises

Suitable when someone breaks trust or shows disloyalty, usually in a deeply personal or impactful way.

• Sharing that secret feels like betraying our friendship
• He was accused of betraying his country

This word is often used in relationships to describe a person who has been disloyal or cheated. It carries a strong negative connotation.

• John was unfaithful to his wife, causing a lot of pain in their marriage
• She felt deeply hurt by his unfaithful actions

Unreliable refers to someone or something that cannot be trusted or depended upon. It is commonly used in work, personal relationships, and when referring to products or services.

• Kevin is unreliable; he always shows up late to meetings
• The car is old and unreliable; it breaks down frequently

This word is used to describe someone or something that is not steady in behavior or mood. It can be applied to personal traits, weather conditions, or performance.

• The weather here is quite inconstant; it can be sunny one moment and stormy the next
• His inconstant work performance led to his dismissal

Fickle is used to describe someone who changes their mind easily and frequently, especially in their loyalties or emotions. It can be used in various contexts, from personal relationships to work scenarios.

• Sarah is so fickle; one day she loves vanilla ice cream, the next day it's chocolate
• His fickle behavior makes it hard to rely on his decisions

This word is often used to describe something physically unstable or wobbly. It can also refer to a person's emotional or mental state.

• He felt unsteady on his feet after the long hike
• Her unsteady voice revealed her nervousness during the speech