Mischievous; tending to misbehave or act badly (especially of a child). / Sexually provocative; now in weakened sense, risqué, cheeky. / (now rare, archaic) Evil, wicked, morally reprehensible.

To perform sexual acts upon.

plural of naughtiness

Alternative form of noughties (“first decade of a century”)

Alternative letter-case form of naughties (“first decade of a century”)

(uncountable) the state of being naughty / (countable) a naughty act

(informal) Naughty people or things.

According to Christmas folklore, a list kept by Santa Claus of children who have been naughty, and who will therefore not be given as many presents.

plural of naughty list

(informal, euphemistic, usually in the plural) Those parts of the body not normally shown in public, particularly the nipples of women and the genitals.