| Rating | Solver | Clue |
|---|---|---|
| ACERBIC | Caustic | |
| ACRID | Caustic | |
| ERODENT | Caustic | |
| ACIDIC | Caustic | |
| DIAERETIC | Caustic. | |
| LYE | Caustic soda | |
| ACIDULOUS | Sharp, caustic | |
| MORDANT | Sarcastic or caustic | |
| TART | Sharp or caustic | |
| SODA | NaOH: caustic – | |
| LIME | Caustic calcium oxide | |
| PYROTIC | Caustic. See Caustic. | |
| PAINTSTRIPPER | Caustic solvent depicts sightseer | |
| CAUSTICALLY | In a caustic manner. | |
| BITING | That bites; sharp; cutting; sarcastic; caustic. | |
| CAUSTIC | A caustic curve or caustic surface. | |
| POTASSA | Potassium hydroxide, commonly called caustic potash. | |
| CAUSTICNESS | The quality of being caustic; causticity. | |
| ALKALI | Soda ash; caustic soda, caustic potash, etc. | |
| CAUSTICAL | Severe; satirical; sharp; as, a caustic remark. | |
| CAUTERISM | The use or application of a caustic; cautery. | |
| CATACAUSTIC | A caustic curve formed by reflection of light. | |
| PUNGENT | Sharply painful; penetrating; poignant; severe; caustic; stinging. | |
| CAUTERIZE | To burn or sear with a cautery or caustic. | |
| ACRIMONIOUS | Caustic; bitter-tempered' sarcastic; as, acrimonious dispute, language, temper. | |