diff --git a/.README/rules/no-undefined-types.md b/.README/rules/no-undefined-types.md
index f5b6025fc..75b082d85 100644
--- a/.README/rules/no-undefined-types.md
+++ b/.README/rules/no-undefined-types.md
@@ -26,7 +26,7 @@ The following types are always considered defined.
 - `null`, `undefined`, `void`, `string`, `boolean`, `object`,
   `function`, `symbol`
 - `number`, `bigint`, `NaN`, `Infinity`
-- `any`, `*`
+- `any`, `*`, `never`, `unknown`, `const`
 - `this`, `true`, `false`
 - `Array`, `Object`, `RegExp`, `Date`, `Function`
 
diff --git a/README.md b/README.md
index 57cd0500f..ecd6719dd 100644
--- a/README.md
+++ b/README.md
@@ -9549,7 +9549,7 @@ The following types are always considered defined.
 - `null`, `undefined`, `void`, `string`, `boolean`, `object`,
   `function`, `symbol`
 - `number`, `bigint`, `NaN`, `Infinity`
-- `any`, `*`
+- `any`, `*`, `never`, `unknown`, `const`
 - `this`, `true`, `false`
 - `Array`, `Object`, `RegExp`, `Date`, `Function`
 
@@ -9897,14 +9897,6 @@ function foo () {
 
 }
 
-/**
- *
- *
- */
-function foo () {
-
-}
-
 /**
  * @param {MyType} foo - Bar.
  * @param {HisType} bar - Foo.
@@ -10189,6 +10181,11 @@ export class Foo {
   }
 }
 // Settings: {"jsdoc":{"mode":"typescript"}}
+
+/**
+ * @type {const}
+ */
+const a = 'string';
 ````
 
 
diff --git a/src/rules/noUndefinedTypes.js b/src/rules/noUndefinedTypes.js
index 4e900c98f..4268612fd 100644
--- a/src/rules/noUndefinedTypes.js
+++ b/src/rules/noUndefinedTypes.js
@@ -14,7 +14,7 @@ const extraTypes = [
   'null', 'undefined', 'void', 'string', 'boolean', 'object',
   'function', 'symbol',
   'number', 'bigint', 'NaN', 'Infinity',
-  'any', '*', 'never',
+  'any', '*', 'never', 'unknown', 'const',
   'this', 'true', 'false',
   'Array', 'Object', 'RegExp', 'Date', 'Function',
 ];
diff --git a/test/rules/assertions/noUndefinedTypes.js b/test/rules/assertions/noUndefinedTypes.js
index e5d0a16a3..c5cd6c848 100644
--- a/test/rules/assertions/noUndefinedTypes.js
+++ b/test/rules/assertions/noUndefinedTypes.js
@@ -634,17 +634,6 @@ export default {
       }
       `,
     },
-    {
-      code: `
-      /**
-       *
-       *
-       */
-      function foo () {
-
-      }
-      `,
-    },
     {
       code: `
         /**
@@ -1215,5 +1204,13 @@ export default {
         },
       },
     },
+    {
+      code: `
+        /**
+         * @type {const}
+         */
+        const a = 'string';
+      `,
+    },
   ],
 };