preconceived
Word family
- preconceiveverbC1
- preconceptionnounB2
- unpreconceivedadjectiveC2
Synonym discussion
Sense: adjective/1
While all four words describe opinions formed before full examination, they differ in scope and tone. "Pre-formed" is a neutral, mechanical term — you simply formed the idea earlier (e.g., a pre-formed plan). "Preconceived" adds the sense that the idea is resistant to new evidence; it is the most common word for opinions about people, places, or situations. "Prejudiced" goes further — it implies hostility or unfairness, particularly toward people or groups, and carries strong negative moral weight. "Biased" is broader, describing any systematic tilt in judgment, whether conscious or not. "Predetermined" suggests that the outcome was fixed in advance by outside forces. For everyday use, choose "preconceived" when you mean an opinion held stubbornly before enough facts arrive.
Common collocations
Etymology
Formed from the prefix 'pre-' (meaning 'before') and 'conceived' (from Latin 'concipere', meaning 'to take into the mind, to form an idea'). The word entered English in the mid-1500s, originally used in legal and philosophical writing about ideas formed before all the evidence was gathered.