official business

Related

paperwork · meeting · agenda · corporate · government · duties · proceedings · administrative · documents · signature · letterhead · stamped · authorized · professional · conference · briefing · reports · filing

Opposites
legitimacy

official businessmonkey business

Deceitful or frivolous conduct

funny business · shady dealings · hanky-panky · shenanigans · mischief

formality and authorization

official businesspersonal business

moonlighting · extracurricular activities

Familiarity
Top 2,000,000