a person who is frightened and in need of help; "they prey on the hopes of the desperate"
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"
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"
showing extreme urgency or intensity especially because of great need or desire; "felt a desperate urge to confess"; "a desperate need for recognition"
desperately determined; "do-or-die revolutionaries"; "a do-or-die conflict"
(of persons) dangerously reckless or violent as from urgency or despair; "a desperate criminal"; "taken hostage of desperate men"
add by mixing or blending on or attaching; "work in the butter and the dough will get the right consistency"; "In his speech, the presidential candidate worked in a lot of learned words"
march aggressively into another's territory by military force for the purposes of conquest and occupation; "Hitler invaded Poland on September 1, 1939"
penetrate or assault, in a harmful or injurious way; "The cancer had invaded her lungs"
occupy in large numbers or live on a host; "the Kudzu plant infests much of the South and is spreading to the North"