1. a person or thing that negates, denies, or nullifies something

Examples

• The critic became a negator of all modern art forms.
• His constant negativity made him a negator of team morale.
• The new policy acted as a negator of previous reforms.
• She refused to be a negator and tried to find positive aspects.
• The device serves as a negator of electromagnetic interference.
• He was known as a negator of traditional teaching methods.