diff --git a/mode/scala.py b/mode/scala.py
index 1e9cb99..e9efc67 100644
--- a/mode/scala.py
+++ b/mode/scala.py
@@ -50,10 +50,14 @@ class ScalaGrammar(Grammar):
         #PatternMatchRule('x', r'(?<=[a-zA-Z0-9_ ])(:)( +)([a-zA-Z0-9_]+)',
         #                 'delimiter', 'spaces', 'scala.type'),
 
-        PatternMatchRule('x', r'(extends)( +)([a-zA-Z0-9_.]+)',
-                         'scala.reserved', 'spaces', 'scala.type'),
-        PatternMatchRule('x', r'(with)( +)([a-zA-Z0-9_.]+)',
+        PatternMatchRule('x', r'(extends|with|new)( +)([a-zA-Z0-9_.]+)',
                          'scala.reserved', 'spaces', 'scala.type'),
+        #PatternMatchRule('x', r'(with)( +)([a-zA-Z0-9_.]+)',
+        #                 'scala.reserved', 'spaces', 'scala.type'),
+        #PatternMatchRule('x', r'(new)( +)([a-zA-Z0-9_.]+)',
+        #                 'scala.reserved', 'spaces', 'scala.type'),
+
+        PatternRule('scala.def', '(?<=(?<![a-zA-Z0-9_])def )[^0-9:\[\( ][^:\[\( ]*'),
 
         #PatternRule('delimiter', r'(?:;|{|}|\[|\]|\(|\)|,|\.|<(?![a-zA-Z_])|>|:|/|\+|-|\*|=)'),
         RegionRule('sub', r'(?<=:)\(', SubTypeGrammar, r'\)'),
@@ -64,7 +68,8 @@ class ScalaGrammar(Grammar):
         PatternRule('spaces', r'(?:\t| )+'),
         PatternRule('eol', r'\n'),
 
-        PatternRule('scala.def', '(?<=(?<![a-zA-Z0-9_])def )[a-zA-Z_][a-zA-Z0-9_]*'),
+        #PatternRule('scala.def', '(?<=(?<![a-zA-Z0-9_])def )[a-zA-Z_][a-zA-Z0-9_]*'),
+        #PatternRule('scala.def', '(?<=(?<![a-zA-Z0-9_])def )[^0-9\[\( ][^\[\( ]*'),
 
         PatternRule('scala.class', '(?<=(?<![a-zA-Z0-9_])class )[a-zA-Z_][a-zA-Z0-9_]*'),
         PatternRule('scala.object', '(?<=(?<![a-zA-Z0-9_])object )[a-zA-Z_][a-zA-Z0-9_]*'),