(Closed) Question: Does FI’s sis in law become my sis in law?

posted 11 years ago in Family
Post # 3
1676 posts
Bumble bee
  • Wedding: September 2010

She’s your husband’s SIL or BIL’s wife. You don’t have to keep her.

Post # 4
2106 posts
Buzzing bee
  • Wedding: May 2011

I think so, it’s me that has the Brother-In-Law and my Fiance calls him his brother in law, but maybe we’re weird?

Post # 6
1652 posts
Bumble bee

Ha ha!  I’ve wondered the same thing.  But I like my husband’s SIL.  For ease of convo, I just call her my SIL. 

But I suppose if you don’t want your’s, you don’t have to have her.

Post # 7
3579 posts
Sugar bee
  • Wedding: August 2010

Yes she does become your SIL! Family is family!

But you don’t have to best friends with her!

Post # 8
91 posts
Worker bee
  • Wedding: October 2010

my fiance calls my brothers’ wives his sisters. i call them my sisters.

my brother’s wife’s sister is a brat, i call her “rachel’s sister”,

my other brother’s wife’s brother, i call my brother in law in law.

Post # 9
1123 posts
Bumble bee
  • Wedding: July 2010

Based on Wikipedia (awesome source, I know lol), I think you are:


sister-in-law (plural sisters-in-law) is the sister of one’s spouse, the wife of one’s sibling, or sometimes the wife of one’s spouse’s sibling

Post # 10
245 posts
Helper bee
  • Wedding: March 2011

@hissoon2be: I am in the same boat as you! My FI’s SIL is SO obnoxious! Spoiled, annoying, selfish… I do not want to be *related* to her! I will most likely refer to her later as “my BIL’s wife” though, haha.

Post # 11
2208 posts
Buzzing bee
  • Wedding: November 1999

haha, that’s great.  We get to choose!

Post # 12
437 posts
Helper bee
  • Wedding: January 2010

My husband’s sister is my sister-in-law. Not my sister. I call my husband’s wife my sister-in-law, in-law–even though we’re both really happy to be sisters! All my husband’s cousin’s wives– we joke that we are cousin-in-law, in-laws. I don’t know if that will change in the future. I guess it’s overly specific… but we’re all newlyweds so we’re all getting used to it. 🙂

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