#16681: use "bidirectional class" instead of "bidirectional category".
diff --git a/Doc/library/unicodedata.rst b/Doc/library/unicodedata.rst
index 4d9b3c5..a3a7c96 100644
--- a/Doc/library/unicodedata.rst
+++ b/Doc/library/unicodedata.rst
@@ -66,7 +66,7 @@
.. function:: bidirectional(unichr)
- Returns the bidirectional category assigned to the Unicode character *unichr* as
+ Returns the bidirectional class assigned to the Unicode character *unichr* as
string. If no such value is defined, an empty string is returned.