(a)deadno longer having or seeming to have or expecting to have life“the nerve is dead”, “a dead pallor”, “he was marked as a dead man by the assassin”
(a)deadnot showing characteristics of life especially the capacity to sustain life; no longer exerting force or having energy or heat“Mars is a dead planet”, “dead soil”, “dead coals”, “the fire is dead”
(s)all in, beat, bushed, deadvery tired“was all in at the end of the day”, “so beat I could flop down and go to sleep anywhere”, “bushed after all that exercise”, “I'm dead after that long trip”
(s)dead, numb(followed by `to') not showing human feeling or sensitivity; unresponsive“passersby were dead to our plea for help”, “numb to the cries for mercy”
(s)dead, deadeneddevoid of physical sensation; numb“his gums were dead from the novocain”, “she felt no discomfort as the dentist drilled her deadened tooth”, “a public desensitized by continuous television coverage of atrocities”
(r)absolutely, perfectly, utterly, deadcompletely and without qualification; used informally as intensifiers“an absolutely magnificent painting”, “a perfectly idiotic idea”, “you're perfectly right”, “utterly miserable”, “you can be dead sure of my innocence”, “was dead tired”, “dead right”