Wrong, evil, bad. Also absol.

Of persons, their actions, dispositions, etc.: Bad, wicked; base, rascally unjust. Also of an animal: Ill-tempered. Obsolete.

Wicked, vile.

Sinful, wicked.

Not righteous or upright; unjust, wicked. Of a person, or (with a negative) of God.

Actively evil, deadly, dire, pernicious, destructive, fatal, cruel, tormenting.

Wicked, false.

Bad, evil, wicked; wretched, miserable, unpleasant.

Not good; evil, bad; wicked.

Of actions, etc.: Characterized by wickedness or evil; iniquitous.

Morally evil; wicked, iniquitous, depraved, vicious, immoral, blameworthy, reprehensible. Of conduct or actions. Now somewhat archaic.

Evil, bad; dreadful.

= wicked, adj.1 1a 1b.

Iniquitous, impious.

Evil, wicked, bad.

Bad in moral character, disposition, or conduct; inclined or addicted to wilful wrongdoing… of a person (or a community of persons).

apparently Bad, evil.

Devoid of natural goodness or virtue; unchivalrous, dishonourable; vile, wicked, villainous. Obsolete.

Lacking or failing to conform to moral virtue, immoral; wicked, evil. Also (in weakened use) of a child or a child's behaviour: unruly…

Differing from or opposed to what is right, good, or profitable; perverse, evil, cruel; adverse, unfavourable. Obsolete.

? Wicked; sinful.

Wicked, evil, mischievous.

Of persons: Guilty of or addicted to atrocious crimes; deeply criminal, extremely wicked.

Of persons, their actions, etc.: Bad, vile, evil, wicked, base; unprincipled, ill-conditioned; good-for-nothing, worthless, ‘naughty’. Obsolete.

Of a material thing: bad in condition or of its kind; (of food or drink) of bad quality, unfit for consumption. Obsolete.

Lacking goodness; bad, wicked. Of persons.

Physically or spiritually unsound; corrupt; wicked. Cf. quart, adj.

Different from, or opposed to what is right, good, or profitable: perverse, adverse. Obsolete.

Of persons and animals, their actions, feelings, etc.: Cruel, fierce, terrible; wicked, base. Now poetic.

Actively or intrinsically immoral; sinful, wicked. Obsolete.

Wicked; evil, bad. Obsolete.

(un-, prefix1 affix 1; cf. Middle Dutch onfijn, Middle High German unvin, German unfein, Danish ufin.)

Unhallowed, unholy; wicked, evil, malignant.

Bad, wicked, base. Obsolete.

Of a person. Morally bad, wicked. Occasionally also of a domestic animal: vicious, uncontrollable. Cf. naught, pron. 2a and noughty, adj. 2. Obsolete.

Containing or of the nature of fæces or dregs; abounding with sediment or impurities; thick, turbid. Now usually with stronger sense: Laden or…

Of an immaterial or abstract thing, as a quality, an emotion, etc.: corrupt, evil, bad, wicked.

Bad in condition or of its kind; (of food or drink) of bad quality, unfit for consumption; = nought, pron. 1a. Obsolete.

Given to evil deeds, mischievous.

Of a person: intending or causing harm, esp. insidiously; having a deleterious influence; villainous, wicked.

Wicked, villainous.

Morally bad, immoral; wicked. Occasionally also in weakened sense: naughty. Now archaic and rare.

In ironic use. Now rare.

Wicked, iniquitous, villainous, despicable.

Of a person, or his or her qualities, behaviour, etc. Cf. steely, adj. 4a. Harsh, cruel, merciless; stern, severe.

= fell, adj.1 (in various senses); esp. cruel, destructive.

Resembling or befitting a pagan or paganism; unchristian; †primitive, savage (obsolete).

Wicked.

Wicked, criminal.

Of bad quality; vile. rare.

= infandous, adj.

Wicked.

Full of evil; harmful, pernicious.

Wicked.

Unfriendly, hostile, adverse; = inimical, adj.

Unspeakable, not to be spoken of; nefarious.

Unjust, unfair; wicked, iniquitous.

Wicked, unprincipled.

Evildoing.

In negative sense. As an intensifier of an expression of disfavour. Obsolete.

Characterized by or full of iniquity; grossly unjust or unrighteous; wicked.

Not racy (racy, adj.1).

Unmitigated; unalleviated; not tempered by any good quality or feature.

Morally corrupted, lacking in moral values; (also) robbed of moral significance or influence. Now somewhat archaic (chiefly U.S.).

figurative.

figurative. in allusions to the glaring effect of the colour.

slang (originally Criminals' slang). Bad, not good; (sometimes) spec. counterfeit, not genuine. Now rare.

Nefarious.

having negative value; bad, evil, or noxious.

Belligerent or intimidating; ruthless; tough. Also as a general term of approval: formidable, superlative (cf. bad, adj. 13).

= badass, adj.