preconception

noun

pre·​con·​cep·​tion ˌprē-kən-ˈsep-shən 

1

: a preconceived idea

2

: prejudice

Synonyms

• theory
• assumption

Examples of preconception in a Sentence

I came to the lecture without any preconceptions.

tried to go into the training sessions without any preconceptions

Recent Examples on the Web

Also not fitting the West’s preconceptions was the fact that most Soviet dissidents didn’t reject socialism. —Matthew Wills, JSTOR Daily, 3 Oct. 2025

And in 2008, the physicist Hossein Partovi of California State University identified a particularly dramatic implication of the way quantum entanglement can undermine preconceptions derived from classical thermodynamics. —Quanta Magazine, 1 Oct. 2025

Rest & Relaxation follows Amandeep (Mani), who in seeking solace on the brink of a life-changing decision, retreats to a secluded bed and breakfast where the eclectic guests challenge her preconceptions of family. —Matt Grobar, Deadline, 16 Sep. 2025

But at least some of that conflict comes from false assumptions, and some of it comes from turning their preconceptions into self-fulfilling prophecies. —Alan Sepinwall, Rolling Stone, 8 Sep. 2025

Word History

First Known Use

1625, in the meaning defined at sense 1

Rhymes for preconception

• apperception
• contraception
• interception
• misconception
• misperception
• conception
• deception
• exception
• inception
• perception
• reception
• intussusception

Medical Definition

preconception

adjective

pre·​con·​cep·​tion -kən-ˈsep-shən 

: occurring prior to conception

preconception genetic counseling