| Word | Definitions | Synonyms |
|---|---|---|
| acute | (adjective) having or experiencing a rapid onset and short but severe course | - |
| (adjective) of an angle; less than 90 degrees | - | |
| (adjective) of critical importance and consequence | - | |
| (adjective) having or demonstrating ability to recognize or draw fine distinctions | Synonyms: discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp | |
| (adjective) ending in a sharp point | Synonyms: acuate, needlelike, sharp | |
| (adjective) extremely sharp or severe | Synonyms: intense |