(philosophy) Any position involving denial of the objective reality of certain entities, or denial that certain general statements are objectively either true or false.

plural of antirealism

(particle physics) One of the three possible colours of an antiquark, corresponding to red in a quark.

Lacking or (especially) opposed to reason and rational thought.

The quality of being antireal.

Opposing or countering reality.

Opposing a rally.

Opposing rationing.

(US, historical) Opposing the collection of outstanding rents in upstate New York during the early 19th century after the death of Stephen Van Rensselaer III.