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Only child, i.e. without bothers or sisters.
No siblings.
My "sibless" son is sometimes lonely without brothers or sisters.
sibless by George Rouail October 15, 2010
Related Words

Siblents 

/‘sibl(ə)nt/ n. Pl. 1. A joint name for uncles and aunts. Portmanteau of “siblings” and “parents.” 2. One’s parents, uncles, and aunts considered collectively.

Original Definition: A joint name of uncles and aunts taking from sibling and parents.
I am going to see my siblents today.
Siblents by ButterCCM January 13, 2020
Gender neutral term for nieces and nephews.
I took my siblets to the park yesterday.
Siblet by kashlyn May 7, 2015
1: Siblits was a legend, I wish he was still here.
2: 😢
1:😢
Siblits by ssurt_ October 14, 2021
Some white kid that brags about being a minority and likes making cracked joker impressions.
What a sibles... his father is not a criminal.
Sibles by Jhaan June 13, 2022

Serial Monogamist 

Someone who jumps from one relationship immediately into another one.

Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.

Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.

Person 2: No, he's a serial monogamist...
Word of the Day on June 22, 2026