If i said something like "i think ufos exist" or "i think [something that can't be proven]" is that an opinion? because you're saying 'i think this is a fact' when there's no proof that its an actual fact.
Most Helpful Girl
It's an opinion because you 'think'0
Most Helpful Guy
Opinion - a belief or judgment that rests on grounds insufficient to produce complete certainty.
So yeah it is.0