diff --git a/.README/rules/no-undefined-types.md b/.README/rules/no-undefined-types.md
index aa9dbcc05..c3b6e48ff 100644
--- a/.README/rules/no-undefined-types.md
+++ b/.README/rules/no-undefined-types.md
@@ -19,8 +19,9 @@ The following tags will also be checked but only when the mode is `closure`:
 
 The following types are always considered defined.
 
-- `null`, `undefined`, `void`, `string`, `boolean`, `object`, `function`
-- `number`, `NaN`, `Infinity`
+- `null`, `undefined`, `void`, `string`, `boolean`, `object`,
+  `function`, `symbol`
+- `number`, `bigint`, `NaN`, `Infinity`
 - `any`, `*`
 - `Array`, `Object`, `RegExp`, `Date`, `Function`
 
diff --git a/README.md b/README.md
index 1ebb4f93f..5f400ad16 100644
--- a/README.md
+++ b/README.md
@@ -5351,8 +5351,9 @@ The following tags will also be checked but only when the mode is `closure`:
 
 The following types are always considered defined.
 
-- `null`, `undefined`, `void`, `string`, `boolean`, `object`, `function`
-- `number`, `NaN`, `Infinity`
+- `null`, `undefined`, `void`, `string`, `boolean`, `object`,
+  `function`, `symbol`
+- `number`, `bigint`, `NaN`, `Infinity`
 - `any`, `*`
 - `Array`, `Object`, `RegExp`, `Date`, `Function`
 
diff --git a/src/rules/noUndefinedTypes.js b/src/rules/noUndefinedTypes.js
index 978b342c3..613f7d8e5 100644
--- a/src/rules/noUndefinedTypes.js
+++ b/src/rules/noUndefinedTypes.js
@@ -4,8 +4,8 @@ import iterateJsdoc, {parseComment} from '../iterateJsdoc';
 import jsdocUtils from '../jsdocUtils';
 
 const extraTypes = [
-  'null', 'undefined', 'void', 'string', 'symbol', 'boolean', 'object',
-  'function',
+  'null', 'undefined', 'void', 'string', 'boolean', 'object',
+  'function', 'symbol',
   'number', 'bigint', 'NaN', 'Infinity',
   'any', '*',
   'Array', 'Object', 'RegExp', 'Date', 'Function',