The phrase "bitterly pungent" is often used to describe strong, unpleasant tastes or odors. However, there are several synonyms that can also convey this meaning. For example, "acrid" suggests a sharp, irritating sharpness, while "astringent" connotes a dry and puckering sensation. "Caustic" describes something that burns or corrodes, while "sharp" implies a pointed, stabbing sensation. "Sour" can also indicate a bite, and "tangy" suggests a tart, zesty flavor. Whatever the word used, these synonyms all evoke a powerful and unpleasant taste or smell that would likely leave a lasting impression.