reckless or dangerous because of despair or urgency

a desperate killer.

having an urgent need, desire, etc.

desperate for attention.

leaving little or no hope; very serious or dangerous

a desperate illness.

extremely bad; intolerable or shocking

clothes in desperate taste.

extreme or excessive.

making a final, ultimate effort; giving all

a desperate attempt to save a life.

actuated by a feeling of hopelessness.

having no hope; giving in to despair.

Obsolete . a desperado.

noun

desperation , despond , despondence , despondency , hopelessness