diff --git a/stl/inc/cstddef b/stl/inc/cstddef
index 91aa28020..756b2316b 100644
--- a/stl/inc/cstddef
+++ b/stl/inc/cstddef
@@ -19,6 +19,12 @@ _STL_DISABLE_CLANG_WARNINGS
 #pragma push_macro("new")
 #undef new
 
+// TRANSITION, non-_Ugly attribute tokens
+#pragma push_macro("msvc")
+#pragma push_macro("intrinsic")
+#undef msvc
+#undef intrinsic
+
 _STD_BEGIN
 _EXPORT_STD using _CSTD ptrdiff_t;
 _EXPORT_STD using _CSTD size_t;
@@ -86,7 +92,7 @@ _EXPORT_STD constexpr byte& operator^=(byte& _Left, const byte _Right) noexcept
 }
 
 _EXPORT_STD template <class _IntType, enable_if_t<is_integral_v<_IntType>, int> = 0>
-_NODISCARD constexpr _IntType to_integer(const byte _Arg) noexcept {
+_NODISCARD _MSVC_INTRINSIC constexpr _IntType to_integer(const byte _Arg) noexcept {
     return static_cast<_IntType>(_Arg);
 }
 #endif // __cpp_lib_byte
@@ -95,6 +101,10 @@ _STD_END
 
 using _STD max_align_t; // intentional, for historical reasons
 
+// TRANSITION, non-_Ugly attribute tokens
+#pragma pop_macro("intrinsic")
+#pragma pop_macro("msvc")
+
 #pragma pop_macro("new")
 _STL_RESTORE_CLANG_WARNINGS
 #pragma warning(pop)
diff --git a/stl/inc/utility b/stl/inc/utility
index 18f21aced..f853436f7 100644
--- a/stl/inc/utility
+++ b/stl/inc/utility
@@ -766,7 +766,7 @@ _CONSTEXPR20 _Ty exchange(_Ty& _Val, _Other&& _New_val) noexcept(
 }
 
 _EXPORT_STD template <class _Ty>
-_NODISCARD constexpr add_const_t<_Ty>& as_const(_Ty& _Val) noexcept { // view _Val through const lenses
+_NODISCARD _MSVC_INTRINSIC constexpr add_const_t<_Ty>& as_const(_Ty& _Val) noexcept { // view _Val through const lenses
     return _Val;
 }
 
@@ -917,7 +917,7 @@ inline constexpr bool _Can_reference<_Ty, void_t<_Ty&>> = true;
 
 #if _HAS_CXX23
 _EXPORT_STD template <class _Ty>
-_NODISCARD constexpr underlying_type_t<_Ty> to_underlying(_Ty _Value) noexcept {
+_NODISCARD _MSVC_INTRINSIC constexpr underlying_type_t<_Ty> to_underlying(_Ty _Value) noexcept {
     return static_cast<underlying_type_t<_Ty>>(_Value);
 }
 
diff --git a/stl/inc/xutility b/stl/inc/xutility
index a4312e1ba..60ea3b5a3 100644
--- a/stl/inc/xutility
+++ b/stl/inc/xutility
@@ -23,7 +23,9 @@ _STL_DISABLE_CLANG_WARNINGS
 
 // TRANSITION, non-_Ugly attribute tokens
 #pragma push_macro("msvc")
+#pragma push_macro("intrinsic")
 #undef msvc
+#undef intrinsic
 
 #if defined(_CRTBLD) && defined(CRTDLL2)
 // TRANSITION, ABI: The vector algorithms are compiled into the import lib, so we disable their usage when building
@@ -2667,7 +2669,7 @@ namespace ranges {
     concept constant_range = input_range<_Rng> && _Constant_iterator<iterator_t<_Rng>>;
 
     template <input_range _Rng>
-    _NODISCARD constexpr auto& _Possibly_const_range(_Rng& _Range) noexcept {
+    _NODISCARD _MSVC_INTRINSIC constexpr auto& _Possibly_const_range(_Rng& _Range) noexcept {
         if constexpr (constant_range<const _Rng> && !constant_range<_Rng>) {
             return _STD as_const(_Range);
         } else {
@@ -2676,7 +2678,7 @@ namespace ranges {
     }
 
     template <class _Ty>
-    _NODISCARD constexpr auto _As_const_pointer(const _Ty* _Ptr) noexcept {
+    _NODISCARD _MSVC_INTRINSIC constexpr auto _As_const_pointer(const _Ty* _Ptr) noexcept {
         return _Ptr;
     }
 #endif // _HAS_CXX23
@@ -7239,6 +7241,7 @@ _NODISCARD constexpr bool _Mul_overflow(const _Int _Left, const _Int _Right, _In
 _STD_END
 
 // TRANSITION, non-_Ugly attribute tokens
+#pragma pop_macro("intrinsic")
 #pragma pop_macro("msvc")
 
 #pragma pop_macro("new")