Red Flag
A warning sign that a person, behavior, or situation may be unhealthy, unsafe, or incompatible.
“Being rude to every server was a red flag.”
People use it seriously for harmful behavior and casually for minor preferences.
Red flags have long symbolized danger, and the metaphor became central to online relationship advice.
major red flag
A strong warning sign.
walking red flag
A person displaying many concerning traits.
red-flag behavior
Actions interpreted as concerning.
What does Red Flag mean?
A warning sign that a person, behavior, or situation may be unhealthy, unsafe, or incompatible.
How is Red Flag used?
People use it seriously for harmful behavior and casually for minor preferences.
Where did Red Flag come from?
Red flags have long symbolized danger, and the metaphor became central to online relationship advice.