Neutrality is the tendency not to side in a conflict (physical or ideological), which may not suggest neutral parties do not have a side or are not a side themselves. In colloquial use neutral can be synonymous with unbiased. However, bias is favouritism for some sides, distinct from the tendency to act on that favouritism. A neutral person can also be well-informed on a subject and therefore need not be ignorant. Neutrality implies tolerance regardless of how disagreeable the subject may be.