"Acerbic" is a word in ENGLISH

Severe or over strict in morals; gloom; as, blue and sour religionists; suiting one who is over strict in morals; …

A wrinkling of the face in displeasure, rebuke, etc.; a sour, severe, or stere look; a scowl.

Of a rough or stern manner, voice, or countenance; sour; surly; severe; harsh.

Morose; severe of countenance; sour; surly; glum; grim.

Of a sour temper; sullen and austere; ill-humored; severe.

santul n medium-sized tree cultivated for its deep-yellow fruits, the size and shape of a tennis ball, sour and juicy …

To wrinkle the brows, as in frowning or displeasure; to put on a frowning look; to look sour, sullen, severe, …

Gloomily morose; ill-natured, abrupt, and rude; severe; sour; crabbed; rough; sullen; gloomy; as, a surly groom; a surly dog; surly …

Sourness or severity of countenance; sterness.

Sour of aspect; of a severe countenance; stern; grim.