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Definition of stepbrother

stepbrother

/ˈstɛpˌbrʌð.ər/
step · broth · er
Plural:stepbrothers
•
Adjective:stepbrotherly
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stepbrother Lexical Profile

stepbrother Game Scores & Validity

• noun

1

A son of one's stepparent by a previous marriage or relationship, with whom one shares no biological parents.

Example

"When her mother remarried, she gained an older stepbrother who was already away at college."

Antonyms
View all antonyms for stepbrother

Word Nuance & Usage

Often confused with 'half-brother'; a stepbrother shares no biological parents with a person (being related solely through the remarriage of a parent), whereas a half-brother shares one biological parent.

• Nearby Words

stenotaphrum
stent
step
stepbrother
stepchild
stepdad
stepdancing

Word Origin & Etymology

From Old English 'steopbroþor', combining 'steop-' (originally meaning 'bereaved' or 'orphaned', from Proto-Germanic '*steupa-') and 'broþor' (brother).

Cite this Entry

Wordmom. (2026). Definition of Stepbrother. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/stepbrother
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