Synonyms of the word

nastiness

• n. (uncountable) Lack of cleanliness.
• n. (uncountable) Dirt, filth.
• n. (uncountable) Indecency; corruption; unkindness, meanness, spite, harshness, cruelty.
• n. (uncountable) Unpleasantness, disagreeableness (to the senses).
• n. (countable) A nasty action, object, quality, etc. (all senses of nasty).

bitchiness

• n. The characteristic of being bitchy.

cattiness

• n. The quality of being catty; cattishness.

filth

• n. Dirt; foul matter; that which soils or defiles.
• n. Smut; that which sullies or defiles the moral character; corruption; pollution.
• n. (Britain, pejorative, slang, with definite article) The police.
• n. (US, agriculture, dated) Weeds growing on pasture land.

filthiness

• n. the property of being filthy.

foulness

• n. The state of being foul.

malevolence

• n. Hostile attitude or feeling.
• n. Behavior exhibiting a hostile attitude.

malice

• n. Intention to harm or deprive in an illegal or immoral way. Desire to take pleasure in another's misfortune.
• n. (law) An intention to do injury to another party. In many jurisdictions malice is a distinguishing factor…

spite

• n. Ill will or hatred toward another, accompanied with the disposition to irritate, annoy, or thwart; a desire…
• n. (obsolete) Vexation; chagrin; mortification.
• v. (transitive) To treat maliciously; to try to injure or thwart.
• v. (transitive, obsolete) To be angry at; to hate.
• v. (transitive) To fill with spite; to offend; to vex.
• prep. Notwithstanding; despite.

spitefulness

• n. (uncountable) The state or quality of being spiteful.
• n. (countable) The result or product of being spiteful.

unpleasantness

• n. (uncountable) The property of being unpleasant or disagreeable.
• n. (countable) An unpleasant behaviour, occurrence, etc.

unsanitariness

• n. the state, condition, or practice of being unsanitary.