Unfaithful

B2 16+

Pronunciation: /ʌnˈfeɪθfəl/

Definitions of unfaithful

adjective not adhering to promises, obligations, or allegiances; disloyal

Example Sentences

A1 She felt hurt when she found out her partner was unfaithful.

A2 The unfaithful employee was caught stealing from the company.

B1 The unfaithful politician was exposed by the media.

B2 Their marriage ended due to his unfaithful behavior.

C1 The unfaithful business partner betrayed his colleagues for personal gain.

C2 The unfaithful friend's deceitful actions were finally revealed.

Examples of unfaithful in a Sentence

formal The evidence clearly showed that he was unfaithful to his wife.

informal I heard that he's been unfaithful to his girlfriend.

slang She found out he was cheating on her, he's so unfaithful.

figurative Betraying your own values is being unfaithful to yourself.

Grammatical Forms of unfaithful

past tense

unfaithful

plural

unfaithfuls

comparative

more unfaithful

superlative

most unfaithful

present tense

is unfaithful

future tense

will be unfaithful

perfect tense

has been unfaithful

continuous tense

is being unfaithful

singular

unfaithful

positive degree

faithful

infinitive

to be unfaithful

gerund

being unfaithful

participle

unfaithful

Origin and Evolution of unfaithful

First Known Use: 1250 year
Language of Origin: Middle English
Story behind the word: The word 'unfaithful' originated from the combination of the prefix 'un-' meaning 'not' and the word 'faithful' meaning 'loyal or true'.
Evolution of the word: Over time, the word 'unfaithful' has retained its original meaning of not being loyal or true, but has also come to be used in a broader sense to describe someone who is not trustworthy or reliable in various aspects of life.