bas·​tard | \ˈba-stərd \

Definition of bastard 

(Entry 1 of 2)

1 : an illegitimate child

2 : something that is spurious (see spurious sense 3a), irregular, inferior, or of questionable origin The … residence is a bastard of the architectural era which followed the building of the Imperial Hotel …— Hugh Byas

3a : an offensive or disagreeable person used as a generalized term of abuse Then they made him an officer and right away he became the biggest bastard you ever saw.— Thomas Heggen

b : man, fellow … the nicest thing an Aussie can call you is a bloody fine bastard.— Wilson Hicks



Definition of bastard (Entry 2 of 2)

1 : illegitimate his bastard son

2 : of mixed or ill-conceived origin known for coining bastard words

3 : of abnormal shape or irregular size bastard sizes of doors and windows …— R. E. Flanders

4 : of a kind similar to but inferior to or less typical than some standard bastard marble

5 : lacking genuineness or authority : false … the indiscriminate use of Greek letters by bastard groups not connected with the higher learning.— Charles W. Ferguson

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Other Words from bastard


bastardly adjective

Synonyms & Antonyms for bastard

Synonyms: Noun

beast, bleeder [British], blighter [chiefly British], boor, bounder, bugger, buzzard, cad, chuff, churl, clown, creep, cretin, crud [slang], crumb [slang], cur, dirtbag [slang], dog, fink, heel, hound, jerk, joker, louse, lout, pill, rat, rat fink, reptile, rotter, schmuck [slang], scum, scumbag [slang], scuzzball [slang], skunk, sleaze, sleazebag [slang], sleazeball [slang], slime, slimeball [slang], slob, snake, so-and-so, sod [chiefly British], stinkard, stinker, swine, toad, varmint, vermin

Synonyms: Adjective

bad, bush, bush-league, crummy (also crumby), deficient, dissatisfactory, ill, inferior, lame, lousy, off, paltry, poor, punk, sour, suboptimal, subpar, substandard, unacceptable, unsatisfactory, wack [slang], wanting, wretched, wrong

Antonyms: Adjective

acceptable, adequate, all right, decent, fine, OK (or okay), passable, respectable, satisfactory, standard, tolerable

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Examples of bastard in a Sentence


Congratulations on getting the job, you lucky bastard! His wife left him, the poor bastard. Life can be a real bastard sometimes.


Alexander Hamilton appears to have been bothered by the fact that he was a bastard child. a bastard knockoff of a far superior thriller
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First Known Use of bastard


13th century, in the meaning defined at sense 1


13th century, in the meaning defined at sense 1

History and Etymology for bastard


Middle English, from Anglo-French, probably of Germanic origin; akin to Old Frisian bost marriage, Old English bindan to bind


Middle English, from attributive use of bastard bastard entry 1

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Dictionary Entries near bastard






bastard alkanet

bastard aloe

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Time Traveler for bastard

The first known use of bastard was in the 13th century

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More Definitions for bastard


bas·​tard | \ˈbas-tərd \

Legal Definition of bastard 

: an illegitimate child

Note: The word bastard is no longer used in legal contexts.

Other Words from bastard

bastardy \ ˈbas-​tər-​dē \ noun

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