Legal Infancy, also known as NONAGE, is a legal term used to describe the period of time in which a person is not considered to be an adult. This period of time is usually determined by the laws of the country or state in which the person resides. During this period, the person is not allowed to enter into contracts, vote, or make other legal decisions. NONAGE is typically defined as the period between birth and the age of majority, which is 18 in most countries.