There are two senses of caustic.
Sense 1:
acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic
unpleasant (vs. pleasant)
Sense 2:
caustic, corrosive, erosive, vitriolic, mordant
destructive (vs. constructive)
Your caustic remarks remain unappreciated.
Caustic Soda and caustic potash are very common.
Phosphoric acid is considered to be caustic in concentrated forms, causing skin and eye irritation upon contact. However, when diluted to household levels for use in food and beverages, it is safe for consumption and is generally considered non-caustic.
The caustic fluid splashed over my hand making me yelp with pain. He had caustic words for the negligent operators of the nursing home.
Caustic potash is potassium hydroxide (KOH), while caustic soda is sodium hydroxide (NaOH). Both are strong alkaline compounds used in industrial processes such as chemical manufacturing and water treatment, but they differ in their chemical composition and properties.
tongue-in-cheek, caustic, sarcastic
Rough, harsh, grating, or caustic could be synonyms for abrasive.
There is no such thing as caustic acid - caustic soda - YES. Caustic potash - YES - but not caustic acid
He is hurt when he heard her caustic remarks of his shoes
caustic embrittlement
Your caustic remarks remain unappreciated.
Yesterday my teacher taught me new words and one of them was caustic.
caustic soda
Caustic Grip was created in 1990.
Caustic Truths ended in 2007.
Caustic Truths was created in 1992.
Caustic can be used as an adjective and a noun.