bastard
Medium to HighVulgar, Offensive, Informal
Definition
Meaning
A person whose parents were not married at the time of their birth, historically.
Nowadays, it is most commonly used as a highly offensive insult, meaning a contemptible, unpleasant, or cruel person. It can also be used informally to describe something difficult or unpleasant.
Linguistics
Semantic Notes
While its original legal and biological meaning is now archaic and rare, its use as a swear word is widespread. In very informal contexts among friends, it can be used in a jocular, non-malicious way (e.g., 'You lucky bastard!').
Dialectal Variation
British vs American Usage
Differences
Both varieties use it primarily as a strong insult. UK usage may have slightly more varied slang applications (e.g., as a generic term for a man or thing: 'He's a clever bastard'; 'This lock is a stubborn bastard').
Connotations
Equally offensive in both dialects. The 'jocular' usage among close friends is common in both but remains highly context-dependent.
Frequency
Comparably frequent as a swear word in informal speech.
Vocabulary
Collocations
Grammar
Valency Patterns
N as an insultADJ + N (e.g., 'a complete bastard')V + N (e.g., 'call someone a bastard')N of a + N (e.g., 'a bastard of a problem')Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “bastard sword (a type of medieval sword)”
- “a bastard of a job (a very difficult task)”
Usage
Context Usage
Business
Almost never used; would be considered grossly unprofessional.
Academic
Used only in historical/legal contexts for its original meaning.
Everyday
Common as a strong insult in informal settings; use with extreme caution.
Technical
Rare. May appear in historical genealogy or biology.
Examples
By Part of Speech
verb
British English
- He was bastardised by the press.
- Don't bastardise the recipe by using cheap ingredients.
American English
- He was bastardized by the media.
- The imported version is a bastardized copy of the original design.
adverb
British English
- (Rare, informal) That was bastard difficult!
American English
- (Rare, informal) He played bastard well in that game.
adjective
British English
- That's a bastard file for metalwork.
- We faced bastard weather on the hike.
American English
- He gave me a bastard look before turning away.
- It's a bastard size of screw, impossible to find.
Examples
By CEFR Level
- (Not recommended for A2 learners. Provide a neutral substitute): He is not a nice person.
- (Cautionary example only): The word 'bastard' is a very rude word.
- (In historical context): In the old law, a bastard could not inherit the title.
- (Informal - jocular, among friends): You won the lottery? You lucky bastard!
- The politician was vilified as a heartless bastard in the tabloids.
- Getting this licence renewed is an absolute bureaucratic bastard of a process.
Learning
Memory Aids
Mnemonic
Think: BAST-ard sounds like 'bad started' – a bad start in life (historical sense) or a bad person (modern sense).
Conceptual Metaphor
A PERSON IS AN ILLEGITIMATE OBJECT (source of contempt).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do NOT confuse with 'бастард' (bastard) in Russian, which is a direct borrowing but carries a much milder, historical, or even neutral connotation in some contexts. The English word is almost always a severe insult.
- Do NOT use as a direct translation for 'ублюдок' or 'сволочь' in polite conversation.
Common Mistakes
- Using it in formal or semi-formal contexts.
- Assuming it is acceptable in mixed company.
- Overestimating the acceptability of the 'jocular' usage with acquaintances.
Practice
Quiz
In which context might the word 'bastard' be considered LEAST offensive?
FAQ
Frequently Asked Questions
It is acceptable only in very specific, informal contexts among close friends where its use is mutually understood as non-serious, or in historical/legal discussions of its original meaning. In all other cases, it is a severe insult.
There is very little difference in core meaning and offensiveness. UK English may use it slightly more flexibly as slang for something difficult ('a bastard of a day') or even as a vague term for a man ('the poor bastard').
Yes, the verb forms 'bastardise' (UK) and 'bastardize' (US) exist. They mean to corrupt or debase something, to change it so it is no longer true to its original form.
For the insulting meaning, 'jerk' or 'unpleasant person' is far safer. For the historical meaning, 'illegitimate child' is the standard term.