unofficial

China's officially atheist government has been wary of organized movements outside its control, and the country's Christians had been split among those attending unofficial "house" or "underground" churches and those visiting government-sanctioned places of worship.

The president’s arrogation of control over the Kennedy Center, on the defensible grounds that its programs are “woke” and otherwise anti-American, has occasioned an unofficial boycott.

The University of Chicago’s hard-grinding reputation earned it the unofficial slogan “Where fun comes to die.”

Ford was suspended after Reform said it received an unofficial complaint from several female members of staff.

Pumpkins remain the unofficial symbol of Halloween, and we're buying them earlier.