| Main Entry: | seriously |
| Part of Speech: | adverb |
| Definition: | dangerously, critically |
Synonyms: |
acutely, badly, decidedly, deplorably, distressingly, gravely, grievously, harmfully, intensely, menacingly, perilously, precariously, quite, regrettably, severely, sorely, threateningly, very |
Antonyms: |
casually, minor, trivially |