nefarious

Improper is a related term of nefarious.

As adjectives the difference between improper and nefarious

is that improper is unsuitable to needs or circumstances; inappropriate; inapt while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a verb improper

is (obsolete|transitive) to appropriate; to limit.

Noxious is a related term of nefarious.

As adjectives the difference between noxious and nefarious

is that noxious is harmful; injurious while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

Snide is a related term of nefarious.

As adjectives the difference between snide and nefarious

is that snide is disparaging or derisive in an insinuative way while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a noun snide

is an underhanded, tricky person given to sharp practise; a sharper; a beat.

Injurious is a related term of nefarious.

As adjectives the difference between injurious and nefarious

is that injurious is causing physical harm or injury; harmful while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As adjectives the difference between contaminated and nefarious

is that contaminated is adulterated; impure while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a verb contaminated

is past tense of contaminate.

Irreligious is a related term of nefarious.

As adjectives the difference between irreligious and nefarious

is that irreligious is contrary to religious beliefs and practices while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a noun malefactor

is a criminal or felon.

As an adjective nefarious is

sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As adjectives the difference between nefarious and malign

is that nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics while malign is evil or malignant in disposition, nature, intent or influence.

As a verb malign is

to make defamatory statements about; to slander or traduce.

As adjectives the difference between nefarious and prodigious

is that nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics while prodigious is very big in size or quantity; gigantic; colossal; huge.

Spoiled is a related term of nefarious.

As adjectives the difference between spoiled and nefarious

is that spoiled is of food, that has deteriorated to the point of no longer being usable or edible while nefarious is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a verb spoiled

is (spoil).