Difference between Nasty and Lousy

NASTY vs LOUSY: NOUN

Filthy; dirty; foul; unclean, either literally or figuratively.
Of filthy habits.
Morally filthy; indecent; ribald; indelicate: applied to speech or behavior.
Nauseous; disgusting to taste or smell: as, a nasty medicine.
In a weakened sense, disagreeable; bad.
Foul; stormy; disagreeable; unpleasant: applied to the weather. Compare dirty and foul in the same sense.
Troublesome; annoying; difficult to deal with, or threatening trouble; of a kind to be avoided: as, a nasty customer to deal with; a nasty cut or fall.
Ill-natured; mean; dishonorable; hateful: as, a nasty remark; a nasty trick.
Synonyms 1 and 3. Nasty, Filthy, Foul, Dirty. These words are on the descending scale of strength. Nasty is the strongest word in the language for that which is offensive to sight, smell, or touch by the quality of its uncleanness or uncleanliness, The English fondness for the colloquial use of the word in connection with bad weather, and figuratively for anything disagreeable, is not matched by anything in America; on the contrary, the word is considered too strong for ordinary or delicate use, and foul is used of bad weather. All the words apply to that which is filled or covered in considerable degree with anything offensive. The moral uses of the word correspond with the physical.
Disgustingly dirty

Unclean, Inclement, Foul, Difficult, Hard, Grotty, Smutty, Lousy, Filthy, Hateful, Awful, Dirty, Spiteful, Vile, Unpleasant

Dismal, Crummy, Soiled, Unclean, Filthy, Nasty, Icky, Dirty, Stinking, Stinky, Rotten, Awful, Shitty, Bad, Crappy

Unclean, Inclement, Foul, Difficult, Hard, Grotty, Smutty, Lousy, Filthy, Hateful, Awful, Dirty, Spiteful, Vile, Unpleasant

Dismal, Crummy, Soiled, Unclean, Filthy, Nasty, Icky, Dirty, Stinking, Stinky, Rotten, Awful, Shitty, Bad, Crappy

It tastes nasty and leaves an after taste.
Terrific purchase for a mattress without nasty chemicals.
The wings were dry and just plain nasty.
Examples of nasty letters Examples of nasty letters.
Trump is nice to those who are nice to him, and nasty to those who are nasty to him.
Contrast The Neidermeyer who is nasty and incompetent and Drill Sergeant Nasty who is either competent or incompetent as the plot directs.
Her ass is nasty to be going to the gym and then complaining about being all sweaty and not washing her nasty ass.
Make that nasty metal suit disappear, or I ll have the monkey s hand do something really nasty to your girlfriend.
You are cornered into signing stuff at the computer by heckling nasty people breathing down your neck and throwing nasty attitudes.
There may in house keeping nasty with attitudes and nasty in customer service.

What kind of lousy country is this, anyway?
And you feel like a lousy Bible teacher.
Lousy Policy, Poor PR and Dreadful Customer Service.
So, competitive markets are lousy for information goods.
Moreover, companies with lousy technology but good business development can outperform similar projects with good technology and lousy business development.
Sleep Number is a lousy, deceptive company that sells a lousy, deceptive bed.
You can make good speakers lousy with it, bit not lousy speakers good.
Troubles come form lousy speakers and you can not EQ lousy speakers and expect satisfaction.
If you give me a lousy image to start with then the results will be lousy.
Lousy company, lousy customer service, dishonest and criminal organization.