[n] a person who is frightened and in need of help; "they prey on the hopes of the desperate"
[adj] showing extreme courage; especially of actions courageously undertaken in desperation as a last resort; "made a last desperate attempt to reach the climber"; "the desperate gallantry of our naval task forces marked the turning point in the Pacific war"- G.C.Marshall; "they took heroic measures to save his life"
[adj] fraught with extreme danger; nearly hopeless; "a desperate illness"; "on all fronts the Allies were in a desperate situation due to lack of materiel"- G.C.Marshall; "a dire emergency"
[adj] showing extreme urgency or intensity especially because of great need or desire; "felt a desperate urge to confess"; "a desperate need for recognition"
[adj] arising from or marked by despair or loss of hope; "a despairing view of the world situation"; "the last despairing plea of the condemned criminal"; "a desperate cry for help"; "helpless and desperate--as if at the end of his tether"; "her desperate screams"
[adj] desperately determined; "do-or-die revolutionaries"; "a do-or-die conflict"
[adj] (of persons) dangerously reckless or violent as from urgency or despair; "a desperate criminal"; "taken hostage of desperate men"
brave, courageous, critical, dangerous, despairing, dire, do-or-die(a), fearless, heroic, hopeless, imperative, resolute, unsafe