half sister-in-law

noun

The half sister of one's spouse.

Opposite
half brother-in-law
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Meanings

nounhalf sister-in-law (plural half sisters-in-law)

plural half sisters-in-law

  1. The half sister of one's spouse.
  2. The wife of one's half-sibling.
  3. The wife of the half-sibling of one's spouse.

Synonyms & antonyms

Opposite
half brother-in-law

Origin

From half sister + -in-law or half + sister-in-law.

Full word history & related roots →
Cite this entry
APA

half sister-in-law. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/half%20sister-in-law

MLA

“half sister-in-law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/half%20sister-in-law. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “half sister-in-law,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/half%20sister-in-law.

Source: half sister-in-law on Wiktionary, CC BY-SA 4.0.