| foul up |
(informal) to make serious mistakes, or cause someone else to do so. |
| giddy |
not serious; silly. [1/2 definitions] |
| grave2 |
very serious or important; causing deep concern. [2/3 definitions] |
| gravity |
very serious nature or manner. [1/2 definitions] |
| grim |
horrible or frightening in a very serious way. [1/3 definitions] |
| happy-go-lucky |
free of cares or serious thoughts; leaving everything to luck. |
| heavy |
causing great concern; very serious. [1/4 definitions] |
| high |
important, serious, or dignified in nature. [1/8 definitions] |
| HIV |
abbreviation of "human immunodeficiency virus." HIV is the virus that causes a disease called AIDS. AIDS is a serious disease that stops the body from being able to protect itself from other diseases. Having the HIV virus does not always lead to AIDS if one receives treatment. |
| joke |
to talk in a way that is not serious. [1/3 definitions] |
| knuckle down |
to start working in a serious manner. |
| light2 |
not serious or important. [1/4 definitions] |
| lightly |
without serious thought. [1/3 definitions] |
| malaria |
a serious disease carried by mosquitoes that causes chills, fever, and sweating. |
| mean business |
to be serious about doing something. |
| minor |
less important or serious than others of the same kind. [1/3 definitions] |
| oath |
a serious promise. [1/2 definitions] |
| penitentiary |
a prison for people who have been found guilty of serious crimes. |
| playful |
with gentle humor; not serious. [1/2 definitions] |
| plea |
a serious or sincere call for help; appeal. [1/2 definitions] |
| plead |
to ask for something in a sincere or serious way. [1/2 definitions] |