# bad blood

> English word · Noun

## Definitions
1. Feelings of hostility or ill will.
2. A serious feud or long-standing grudge.
3. An inherited immoral or disturbed nature.
4. A particular disease; in some places, syphilis.

## Etymology
From Charles Lamb's Essays of Elia (1823).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bad-blood