Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Adriel has been climbing in recent years. All-time it's been given to 34,751 U.S. babies, the 224th most common name by sound today, peaking at 3,935 in 2025, with 3,935 in 2025.
Adriel has no common alternate spellings by sound.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).