Difference between Unpleasant and Virulent

UNPLEASANT vs VIRULENT: ADJECTIVE

Infectious; having the ability to cause disease
Harsh or corrosive in tone
Extremely poisonous or injurious; producing venom
Characterized by, causing, or promoting the rapid onset of severe illness. Used of a disease or toxin.
Capable of causing disease by aggressively interfering with the immune system of the host. Used of a pathogen.
Extremely hostile or malicious.
Extremely poisonous or venomous; very active in doing injury.
Very bitter in enmity; actuated by a desire to injure; malignant.
Highly infectious, malignant, or deadly.
Hostile to the point of being venomous; intensely acrimonious.

Unhappy, Caustic, Acrid, Mortifying, Bitter, Unlovely, Grim, Obnoxious, Hellish, Harsh, Dreadful, Awful, Embarrassing, Nasty, Painful

Highly infective, Acerb, Acid, Sulphurous, Bitter, Sulfurous, Blistering, Acrid, Unpleasant, Acerbic, Toxic, Caustic, Deadly, Vitriolic, Venomous

Unhappy, Caustic, Acrid, Mortifying, Bitter, Unlovely, Grim, Obnoxious, Hellish, Harsh, Dreadful, Awful, Embarrassing, Nasty, Painful

Highly infective, Acerb, Acid, Sulphurous, Bitter, Sulfurous, Blistering, Acrid, Unpleasant, Acerbic, Toxic, Caustic, Deadly, Vitriolic, Venomous

II Stonedll driving is unpleasant, say marijuana smokers.
At its worst, it is painful and unpleasant.
And that presents a number of unpleasant symptoms.
Someone that is old, wrinkly and generally unpleasant.
Being set up for failure is incredibly unpleasant.
It left such a sticky and unpleasant film.
You meet your Tour MENTOR andthe UNPLEASANT STRANGER.
In general, pictures of death are less unpleasant, elicit less arousal, and have greater dominance than unpleasant pictures.
Similarly, the spiciness of black pepper is unpleasant to some people so it might also be unpleasant for rats.
Because punishment is unpleasant, it can also trigger aggression just like other unpleasant events.

Drugs coated than those virulent BUTALBITAL may tautly freshen.
Encapsulated S strain is virulent and kills mice.
Jewish resentments virulent in parts of the population.
Virulent Highly lethal; causing severe illness or death.
And he may also be a virulent racist.
Automobiles faced particularly virulent receptions in rural areas.
There is a nasty virulent edge to it.
By choosing the Mahoney strain, he had picked the most virulent strain from the most virulent type of virus.
These results provide a sobering example of how a highly virulent epidemic clone can suddenly emerge from a less virulent, closely related progenitor.
Hence, parasites can evolve to become either more virulent or less virulent, depending partially on how they get from one host to the next.