naughty
/ˈnɔːti/
adjective
1 (especially of a child) badly behaved; disobedient.
2 informal Mildly rude or indecent, typically because related to sex.
3 archaic Wicked.
Origin
Late Middle English: from naught + -y. The earliest recorded sense was ‘possessing nothing’; the sense ‘wicked’ also dates from late Middle English, and gave rise to the current senses.
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I shall not be naughty today. I shall be a good boy. I shall not feature a word we've used before!
@Algot Also used to symbolise lack of tea :(