1. lacking distinctive or interesting qualities; dull and unremarkable
2. lacking moral strength or integrity; weak in character

Examples

• The hotel room was characterless, with plain walls and generic furniture.
• He gave a characterless performance that failed to impress the audience.
• The town's characterless downtown strip had nothing to distinguish it from any other city.
• Her characterless behavior showed she had no real convictions of her own.
• The building's characterless design made it blend into the urban landscape.
• A characterless leader cannot inspire loyalty or respect from followers.