The difference between Lousy and Slim

When used as adjectives, lousy means remarkably bad, whereas slim means slender in an attractive way.

Slim is also noun with the meaning: a type of cigarette substantially longer and thinner than normal cigarettes.

Slim is also verb with the meaning: to lose weight in order to achieve slimness.

check bellow for the other definitions of Lousy and Slim

Lousy as an adjective:

Remarkably bad; of poor quality, dirty, or underhanded; mean, contemptible.

Examples:

"No offense, but his cooking is lousy''."

"synonyms: miserable"
Lousy as an adjective:

Infested with lice.
Lousy as an adjective (colloquial, usually with ''with''):

Filled or packed (with something, usually bad).

Examples:

"The place was lousy with students''."

"synonyms: inundated jam-packed teeming"

Slim as an adjective (of a person or a person's build):

Slender, thin. Slender in an attractive way. Designed to make the wearer appear slim. Long and narrow. Of a reduced size, with the intent of being more efficient.

Examples:

"Movie stars are usually slim, attractive, and young."
Slim as an adjective (of something abstract like a chance or margin):

Very small, tiny.

Examples:

"I'm afraid your chances are quite slim."
Slim as an adjective (rural, Northern England, Scotland):

Bad, of questionable quality; not strongly built, flimsy.

Examples:

"A slimly-shod lad; a slimly-made cart."
Slim as an adjective (South Africa, obsolete, _, in, _, UK):

Sly, crafty.

Slim as a noun:

A type of cigarette substantially longer and thinner than normal cigarettes.

Examples:

"I only smoke slims."
Slim as a noun (Ireland, regional):

A potato farl.
Slim as a noun (East Africa, uncountable):

AIDS, or the chronic wasting associated with its later stages.
Slim as a noun (slang, uncountable):

Cocaine.

Slim as a verb (intransitive):

To lose weight in order to achieve slimness.
Slim as a verb (transitive):

To make slimmer; to reduce in size.