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Definitions

moonlighting

ADJECTIVE
adulterous
Synonyms
STRONGEST
cheating extracurricular illicit
WEAK
double-crossing fast and loose immoral speedy two-faced two-timing unchaste
Antonyms
WEAK
chaste clean pure virginal
ADJECTIVE
unfaithful
Synonyms
STRONGEST
cheating untrue
WEAK
adulterine deceitful double-crossing faithless false false-hearted fickle foresworn inconstant incontinent not true to of bad faith perfidious philandering recreant shifty snaky sneaking traitorous treacherous treasonable two-faced two-timing unchaste unreliable untrustworthy wicked
Antonyms
WEAK
faithful loyal trustworthy
NOUN
sideline
Synonyms
STRONG
distraction diversion hobby recreation subsidiary
WEAK
leisure activity leisure pursuit second job side job side project
Antonyms
STRONG
profession vocation work

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Commisso eventually got a job in commercial banking at Chase Manhattan, where his boss was unaware that he was moonlighting at a nightclub.

From The Wall Street Journal • Feb. 20, 2026

“When I first rode in the Golden Dragon Chinese New Year parade with him, I looked at him and thought, ‘Are you moonlighting as a movie star?’” she said.

From Los Angeles Times • Jan. 15, 2026

Back in 2001, the English Premier League took that step and fans saw a drastic improvement once the referees no longer spent their days moonlighting as teachers or taxi drivers.

From The Wall Street Journal • Dec. 17, 2025

The 24-year-old is moonlighting at Eurovision from his day job at the Vienna State Opera, where he's had roles in The Magic Flute and Von der Liebe Tod.

From BBC • May 16, 2025

Teachers, especially a teacher moonlighting as a counselor, tend to get left out of student gossip.

From "Thirteen Reasons Why" by Jay Asher