Noun: negativist
- Someone who refuses to do what is asked or does the opposite of what is asked
"The negativist child always responded with 'No' to any request"
- Someone who is resigned to defeat without offering positive suggestions
"His negativist attitude brought down team morale";
- defeatist
Derived forms: negativists
Type of: balker [N. Amer], baulker [Brit], noncompliant, pessimist