From WordNet (r) 3.0 (2006):
dead
adv 1: quickly and without warning; "he stopped suddenly" [syn:
abruptly, suddenly, short, dead]
2: completely 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" [syn: absolutely, perfectly,
utterly, dead]
adj 1: no 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" [ant: alive(p),
live]
2: not 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" [ant: live]
3: very 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" [syn: all
in(p), beat(p), bushed(p), dead(p)]
4: unerringly accurate; "a dead shot"; "took dead aim"
5: physically inactive; "Crater Lake is in the crater of a dead
volcano of the Cascade Range"
6: (followed by `to') not showing human feeling or sensitivity;
unresponsive; "passersby were dead to our plea for help";
"numb to the cries for mercy" [syn: dead(p), numb(p)]
7: devoid 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" [syn: dead, deadened]
8: lacking acoustic resonance; "dead sounds characteristic of
some compact discs"; "the dead wall surfaces of a recording
studio"
9: not yielding a return; "dead capital"; "idle funds" [syn:
dead, idle]
10: not circulating or flowing; "dead air"; "dead water";
"stagnant water" [syn: dead(a), stagnant]
11: not surviving in active use; "Latin is a dead language"
12: lacking resilience or bounce; "a dead tennis ball"
13: out of use or operation because of a fault or breakdown; "a
dead telephone line"; "the motor is dead"
14: no longer having force or relevance; "a dead issue"
15: complete; "came to a dead stop"; "utter seriousness" [syn:
dead(a), utter]
16: drained of electric charge; discharged; "a dead battery";
"left the lights on and came back to find the battery
drained" [syn: dead, drained]
17: devoid of activity; "this is a dead town; nothing ever
happens here"
n 1: people who are no longer living; "they buried the dead"
[ant: living]
2: a time when coldness (or some other quality associated with
death) is intense; "the dead of winter"