Definitions:

1. make chemically neutral verb
   • The acid was neutralized.
2. make ineffective by counterbalancing the effect of verb
   • Your optimism neutralizes their gloom.
3. make politically neutral and thus inoffensive verb
   • The treaty neutralized the small republic

Synonyms:

• counterbalance
• negate
• nullify
• waste

NearBy Words:

• neutralised