| lionized | To give a lot of public attention and approval to someone; treat as a celebrity | |
| listless | Lacking energy or enthusiasm | |
| logorrhea | A tendency to extreme loquacity, producing incoherent talk | |
| loquacious | Tending to talk a great deal; talkative | |
| lovelorn | Being unhappy because of unrequited love or an ended love affair | |
| lucid | Expressed clearly; easy to understand | |
| lucre | Money, especially when regarded as sordid or distasteful or gained in a dishonorable way | |
| ludicrous | so foolish, unreasonable, or out of place as to be amusing | |
| lugubrious | looking or sounding sad and dismal | |
| luminary | A person who inspires or influences others, especially one prominent in a particular sphere | |