1. not serving to distinguish or differentiate; lacking distinctive qualities or characteristics
Usage: often used in linguistics and phonology to describe sounds or features that do not mark a difference in meaning

Examples

• The nondistinctive features of the two products made it hard for consumers to choose between them.
• In phonology, aspiration is nondistinctive in English but distinctive in some other languages.
• The building had a nondistinctive design that blended in with its surroundings.
• Her nondistinctive accent made it difficult to determine where she was from.
• The nondistinctive color of the walls gave the room a bland appearance.
• These nondistinctive characteristics are shared by many species in the genus.