Noble
Adalis is likely a modern elaboration of the Germanic root 'adal', meaning noble. It is often considered a variant of names like Adela or Adelaide, or a blend of Ada and the popular suffix -lis.
Less common today
Adalis isn't in the latest US Top 1000. It last peaked at #7,554 in 1997.
US births per 5-year period, 1990βpresent (SSA data).