1. lacking distinctive or interesting qualities; plain or monotonous

Examples

• The featureless desert stretched endlessly in all directions.
• His featureless face showed no emotion whatsoever.
• The building’s featureless concrete walls made it look institutional.
• She stared out at the featureless gray sky.
• The featureless landscape offered no landmarks for navigation.
• The room was completely featureless, with white walls and no decorations.