Definitions of serious:
- adjective: of great consequence
Example: "Marriage is a serious matter"
- adjective: concerned with work or important matters rather than play or trivialities
Example: "A serious student of history"
- adjective: requiring effort or concentration; complex and not easy to answer or solve
Example: "Raised serious objections to the proposal"
- adjective: appealing to the mind
Example: "A serious book"
- adjective: completely lacking in playfulness
- adjective: causing fear or anxiety by threatening great harm
Example: "A serious wound"