what does it mean if your anti-positivist?

Positivists typically use research methods such as experiments and statistical surveys, while antipositivists use research methods which rely more on ethnographic fieldwork, conversation/discourse analysis or open-ended interviews. Positivist and antipositivist methods are sometimes combined.

More than a negativist who would simply say no to anything that is remotely positive.

An ANTI-positivist is someone who will actively ANTI any such thing, by hook or by crook, and so would be capable of doing more harm than a simple negativist...

To be anti-positive means someone who is very negative.

Broadly speaking who generally disagrees or starts his sentence with a 'no'.;someone who is resigned to defeat without offering positive suggestions;

defeatist;

The one who knows only two letters.

''No''

a negative thinking person