smugly

As adverbs the difference between arrogantly and smugly

is that arrogantly is in an arrogant manner; with undue pride or self-importance while smugly is in a self-satisfied manner.

As adverbs the difference between smugly and proudly

is that smugly is in a self-satisfied manner while proudly is in a proud manner.

As adverbs the difference between smugly and contemptuously

is that smugly is in a self-satisfied manner while contemptuously is in a disrespectful or discourteous manner; condescendingly.

As adverbs the difference between defiantly and smugly

is that defiantly is in a defiant manner while smugly is in a self-satisfied manner.

As adverbs the difference between smugly and sufficiently

is that smugly is in a self-satisfied manner while sufficiently is (manner) in a sufficient manner; enough.

As an adjective arrogant

is having excessive pride in oneself, often with contempt for others.

As an adverb smugly is

in a self-satisfied manner.

As an adjective acrimonious

is angry, acid, and sharp in delivering argumentative replies: bitter; mean-spirited; sharp in language or tone.

As an adverb smugly is

in a self-satisfied manner.

As adverbs the difference between snuggly and smugly

is that snuggly is (nonstandard) while smugly is in a self-satisfied manner.

As an adjective snuggly

is cuddly, pleasant to snuggle with.

As an adjective permissive

is giving, or predisposed to give permission; lenient.

As an adverb smugly is

in a self-satisfied manner.

As adverbs the difference between smugly and snugly

is that smugly is in a self-satisfied manner while snugly is tightly, with limited space to move, in a snug manner.