| Word | Definitions | Synonyms |
|---|---|---|
| antacid | (adjective) acting to neutralize acid (especially in the stomach) | - |
| antagonistic | (adjective) arousing animosity or hostility | - |
| (adjective) used especially of drugs or muscles that counteract or neutralize each other's effect | Synonyms: incompatible | |
| (adjective) characterized by antagonism or antipathy | Synonyms: antipathetic, antipathetical | |
| (adjective) incapable of harmonious association | - | |
| (adjective) indicating opposition or resistance | Synonyms: counter |