Pronunciation: /ʌn.saʊnd/

Definitions of unsound

adjective not solid or stable; not in good condition; not based on valid reasoning or evidence

Example Sentences

A1 The bridge was unsound and needed immediate repairs.

A2 The student's argument was unsound and lacked evidence.

B1 The company's financial practices were found to be unsound.

B2 The decision to invest in that project was unsound and resulted in heavy losses.

C1 The legal argument presented by the defense was deemed unsound by the judge.

C2 The scientific theory proposed by the researcher was unsound and quickly debunked by experts.

Examples of unsound in a Sentence

formal The structural integrity of the building was deemed unsound by the engineers.

informal I heard that the rumors about the company's financial situation are unsound.

slang His argument was totally unsound, dude.

figurative Her decision to quit her stable job and travel the world seemed unsound to her parents.

Grammatical Forms of unsound

past tense

unsounded

plural

unsounds

comparative

less sound

superlative

least sound

present tense

unsound

future tense

will unsound

perfect tense

has unsounded

continuous tense

is unsounding

singular

unsound

positive degree

sound

infinitive

to unsound

gerund

unsounding

participle

unsounded

Origin and Evolution of unsound

First Known Use: 1250 year
Language of Origin: Old English
Story behind the word: The word 'unsound' originated from Old English, specifically from the word 'unsund', which meant unhealthy or not in good condition.
Evolution of the word: Over time, the meaning of 'unsound' has evolved to not only refer to physical health but also mental health, logic, and reasoning. It is now commonly used to describe something that is not reliable, stable, or valid.