1. resembling or characteristic of a nun; austere, pious, or celibate in manner
Usage: often implies excessive piety or prudishness

Examples

• Her nunnish appearance and quiet demeanor made her seem older than her years.
• The boarding school had a nunnish atmosphere with its strict rules and plain uniforms.
• She lived a nunnish existence, avoiding parties and social gatherings.
• His nunnish devotion to his studies left little time for recreation.
• The restaurant’s nunnish decor featured simple wooden tables and bare walls.
• Her nunnish habits included daily prayer and early bedtimes.