The difference between Lovely and Nice

When used as nouns, lovely means an attractive, lovely person, especially a (professional) beauty, whereas nice means niceness.

When used as adverbs, lovely means in a lovely fashion or manner, whereas nice means nicely.

When used as adjectives, lovely means beautiful, whereas nice means pleasant, satisfactory.

Nice is also verb with the meaning: to run a process with a specified (usually lower) priority.

check bellow for the other definitions of Lovely and Nice

Lovely as an adjective:

Beautiful; charming; very pleasing in form, looks, tone, or manner.

Examples:

"It's a lovely day and the sun is shining."

"The music box plays a lovely melody."

"The castle garden enchants visitors with its lovely blooms."
Lovely as an adjective:

Very nice, wonderful.

Examples:

"It would be lovely to have a little more money to spend."
Lovely as an adjective (obsolete):

Inspiring love or friendship; amiable.
Lovely as an adjective (obsolete):

Loving, filled with love.

Lovely as an adverb (informal):

In a lovely fashion or manner; beautifully.

Lovely as a noun (informal):

An attractive, lovely person, especially a (professional) beauty.

Examples:

"a calendar depicting young lovelies in bikinis"
Lovely as a noun:

Examples:

"Goodbye, my lovely."
Lovely as a noun:

A lovely object.

Nice as an adjective:

Pleasant, satisfactory.
Nice as an adjective:

Of a person: friendly, attractive.
Nice as an adjective:

Respectable; virtuous.

Examples:

"What is a nice person like you doing in a place like this?"
Nice as an adjective:

With "and", shows that the given adjective is desirable: pleasantly.

Examples:

"The soup is nice and hot."
Nice as an adjective (obsolete):

Silly, ignorant; foolish.
Nice as an adjective (now, rare):

Particular in one's conduct; scrupulous, painstaking; choosy.
Nice as an adjective (obsolete):

Particular as regards rules or qualities; strict.
Nice as an adjective:

Showing or requiring great precision or sensitive discernment; subtle.
Nice as an adjective (obsolete):

Easily injured; delicate; dainty.
Nice as an adjective (obsolete):

Doubtful, as to the outcome; risky.

Nice as an adverb (colloquial):

Nicely.

Examples:

"Children, play nice."

"He dresses real nice."

Nice as a verb (transitive, computing, Unix):

To run a process with a specified (usually lower) priority.