1.Definition: causing fear or dread or terror

"Dire news", "A career or vengeance so direful that London was shocked"

Related Adjective(s):awful, direful, dread, dreaded, dreadful, fearful, fearsome, frightening, horrendous, horrific, terrible

2.Definition: fraught with extreme danger; nearly hopeless

"A dire emergency"

Related Adjective(s):desperate