Having a sound, tone, or quality resembling that of a flute; clear and musical but sometimes thin or lacking depth.
From 'flute' with the suffix '-y' (forming adjectives). This adjectival form became common in music criticism and description during the 19th century.
Critics use 'flutey' to describe voices that are clear but maybe too thin—it's the kind of gentle insult musicians give each other, where the compliment (musical clarity) comes with a slight edge (lacking body).
Complete word intelligence in one call. Free tier — 50 lookups/day.