2 files changed, 10 insertions, 17 deletions
diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs
index e599bf4cab0..f94266c3aea 100644
--- a/compiler/rustc_resolve/src/diagnostics.rs
+++ b/compiler/rustc_resolve/src/diagnostics.rs
@@ -1165,14 +1165,9 @@ impl<'a> Resolver<'a> {
             (b1, b2, misc1, misc2, false)
         };
 
-        let mut err = struct_span_err!(
-            self.session,
-            ident.span,
-            E0659,
-            "`{ident}` is ambiguous ({why})",
-            why = kind.descr()
-        );
+        let mut err = struct_span_err!(self.session, ident.span, E0659, "`{ident}` is ambiguous");
         err.span_label(ident.span, "ambiguous name");
+        err.note(&format!("ambiguous because of {}", kind.descr()));
 
         let mut could_refer_to = |b: &NameBinding<'_>, misc: AmbiguityErrorMisc, also: &str| {
             let what = self.binding_description(b, ident, misc == AmbiguityErrorMisc::FromPrelude);
diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs
index af062af5329..4ba7e7d6f3b 100644
--- a/compiler/rustc_resolve/src/lib.rs
+++ b/compiler/rustc_resolve/src/lib.rs
@@ -728,23 +728,21 @@ enum AmbiguityKind {
 impl AmbiguityKind {
     fn descr(self) -> &'static str {
         match self {
-            AmbiguityKind::Import => "name vs any other name during import resolution",
-            AmbiguityKind::BuiltinAttr => "built-in attribute vs any other name",
-            AmbiguityKind::DeriveHelper => "derive helper attribute vs any other name",
+            AmbiguityKind::Import => "multiple potential import sources",
+            AmbiguityKind::BuiltinAttr => "a name conflict with a builtin attribute",
+            AmbiguityKind::DeriveHelper => "a name conflict with a derive helper attribute",
             AmbiguityKind::MacroRulesVsModularized => {
-                "`macro_rules` vs non-`macro_rules` from other module"
+                "a conflict between a `macro_rules` name and a non-`macro_rules` name from another module"
             }
             AmbiguityKind::GlobVsOuter => {
-                "glob import vs any other name from outer scope during import/macro resolution"
+                "a conflict between a name from a glob import and an outer scope during import or macro resolution"
             }
-            AmbiguityKind::GlobVsGlob => "glob import vs glob import in the same module",
+            AmbiguityKind::GlobVsGlob => "multiple glob imports of a name in the same module",
             AmbiguityKind::GlobVsExpanded => {
-                "glob import vs macro-expanded name in the same \
-                 module during import/macro resolution"
+                "a conflict between a name from a glob import and a macro-expanded name in the same module during import or macro resolution"
             }
             AmbiguityKind::MoreExpandedVsOuter => {
-                "macro-expanded name vs less macro-expanded name \
-                 from outer scope during import/macro resolution"
+                "a conflict between a macro-expanded name and a less macro-expanded name from outer scope during import or macro resolution"
             }
         }
     }