variants
also British cissy
plural sissies
informal + disapproving
1
: a boy who is weak or who likes things that girls usually like
The other kids laughed at him and called him a sissy because he didn't like sports.
2
: a person who is weak and fearful
Don't be such a sissy. [=wimp] It's just a frog.
Cite this Entry
“Sissy.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sissy. Accessed 19 Jun. 2026.
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