Englishfor English speakers
adult
Noun
—
An adult is a person who is of the legal age of majority.
At age 18 years, he became an adult, so he could move out without his parents' consent.
Adult usually means a person who is either age 18 years or older.
—
An adult is a human who is mentally and sexually mature.
The Harry Potter series was read mostly by young adults.
—
An adult is a sexually mature nonhuman animal.
Adult female cows feed milk to their offspring.
malefactor
—
noun
(= criminal)
someone who has committed a crime or has been legally convicted of a crime