Source : WordNet®

deadliest
     See {deadly}

deadly
     adv 1: as if dead [syn: {lifelessly}]
     2: as if produced by death; "deadly pale"; "a deadly paralytic
        stroke"
     3: (used as intensives) extremely; "she was madly in love";
        "deadly dull"; "deadly earnest"; "deucedly clever";
        "insanely jealous" [syn: {madly}, {insanely}, {deucedly},
        {devilishly}]
     [also: {deadliest}, {deadlier}]

deadly
     adj 1: causing or capable of causing death; "a fatal accident"; "a
            deadly enemy"; "mortal combat"; "a mortal illness"
            [syn: {deathly}, {mortal}]
     2: of an instrument of certain death; "deadly poisons"; "lethal
        weapon"; "a lethal injection" [syn: {lethal}]
     3: extremely poisonous or injurious; producing venom; "venomous
        snakes"; "a virulent insect bite" [syn: {venomous}, {virulent}]
     4: involving loss of divine grace or spiritual death; "the
        seven deadly sins" [syn: {mortal(a)}]
     5: exceedingly harmful [syn: {baneful}, {pernicious}, {pestilent}]
     6: (of a disease) having a rapid course and violent effect
     [also: {deadliest}, {deadlier}]