neutralizes Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. 1 to cause to have no effect or become useless; 2 to cause to be neutral Example Sentence Her optimism neutralizes his gloom. Synonyms change; alter; modify Antonyms keep the same Hear It! Say It! Write It! neutralizes Switch to cursive Start Share with your friends: