| A | B |
|---|
| counterproductive | Producing the opposite of what is desired or intended (adj.) |
| antagonist | An opponent (n.) |
| obstinate | Unyielding; unreasonably determined to have one’s own way (adj.) |
| counterbalance | A weight used to balance another weight (n); to balance or offset (v.) |
| obscure | To make unclear; to conceal or make less obvious (v.) |
| antiseptic | Something used to kill germs (n.); free of germs (adj.) |
| contradiction | A statement that is opposite to another statement (n.) |
| oblique | Not straight; slanting, inclined, or sloping (adj.) |
| obnoxious | Very unpleasant and objectionable (adj.) |
| antisocial | Unable to associate with other people; not sociable (adj.) |
