| A | B |
|---|
| Obscene | disguisting to the senses, repulsiver |
| Obsequious | marked by or exhibiting a fawning attentiveness |
| Obsession | a compelling motivation |
| Obsolete | no longer in use, old-fashioned |
| Officious | Volunteering one's services where they are neither asked or needed, kind |
| Ominous | exhibiting an omen, forboding or foreshadowing evil |
| Opportune | occuring at an appropiate time |
| Ostensible | intended for display, open to view |
| Ostracize | to exclude from a group by common consult |
| Pandemonium | the infernal regions, hell |
| Paradox | a statement that is seemingly opposed to common sense and yet is perhaps true |
| Parochial | of or relating to a church parish |
| Parody | a feeble or ridiculous imitation |
| Paraphrase | a restatement of a text, passage, or work |
| Pensive | dreamily thoughtful |
