dire
Extremely serious and dangerous, needing quick and careful action.
Dire describes a situation that is extremely serious, urgent, or dangerous. When something is dire, it demands immediate attention because the consequences of ignoring it could be terrible.
A family facing dire financial straits might struggle to pay for food and rent. A town experiencing dire water shortages during a drought needs help fast. Doctors might describe a patient's condition as dire when their life is in danger. The word carries a sense of gravity and alarm: the situation is critically bad and requires immediate action.
You might also hear the phrase dire warnings, which means urgent predictions about serious problems ahead. A weather forecaster might issue dire warnings about an approaching hurricane. A teacher might give dire warnings about what will happen if students don't start studying for finals.
Dire means the stakes are genuinely high and the situation requires serious action or concern. A pop quiz is annoying, but not dire. Running out of your favorite cereal is disappointing, but not dire. Use the word when consequences matter deeply and urgently.