| blasé | Unimpressed with or indifferent to something because one has experienced or seen it so often before | |
| bilious | Affected by or associated with nausea or vomiting | |
| beseech | To implore urgently | |
| bereft | Deprived of or lacking something, especially a non-material asset | |
| benign | Gentle, kindly; not harmful in effect | |
| beneficence | The quality of being kind or helpful or generous | |
| bemoan | To express discontent or sorrow over something | |
| bellicose | Demonstrating aggression and willingness to fight | |
| belittle | To dismiss as unimportant | |
| belied | To give a false impression of something | |