Learner's definition of DIRE
[or more dire; most dire]
1 : very bad : causing great fear or worry
Even the smallest mistake could have dire [=terrible, dreadful] consequences.
a dire emergency
The circumstances are now more dire than ever.
With its best player out of the game, the team found itself in dire straits. [=in a very bad or difficult situation]
The company now finds itself in dire financial straits. [=the company is having bad financial problems]
2 : warning of disaster : showing a very bad future 3 a : requiring immediate action : very urgent b : very serious or extreme