1. (Of conduct, opinions, etc.) weighty; important (serious violation of rules).
2. (Of an injury, illness, accident, etc.) dangerous; potentially resulting in death or other severe consequences (serious bodily harm).
1. (Of conduct, opinions, etc.) weighty; important (serious violation of rules).
2. (Of an injury, illness, accident, etc.) dangerous; potentially resulting in death or other severe consequences (serious bodily harm).