Difference between Unpleasant and Acerb

UNPLEASANT vs ACERB: ADJECTIVE

Sour, bitter, and harsh to the taste; sour, with astringency or roughness; hence, figuratively, sharp, harsh, etc.

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

Blistering, Caustic, Vitriolic, Virulent, Astringent, Bitter, Acid, Venomous, Sulfurous, Sulphurous, Sour, Unpleasant, Sharp, Acerbic, Acrid

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

Vitriolic, Virulent, Venomous, Unpleasant, Sulphurous, Sulfurous, Sour, Sharp, Caustic, Blistering, Bitter, Astringent, Acrid, Acid, Acerbic

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.

Put with calibre dark, acerb tasteful drink that uses potable beans that are as unvulcanised as allegeable.