diff --git a/docs/general/adapters.md b/docs/general/adapters.md
index d7363a9f..b505a7f5 100644
--- a/docs/general/adapters.md
+++ b/docs/general/adapters.md
@@ -91,9 +91,9 @@ ActiveModel::Serializer::Adapter.register(:special_adapter, MyAdapter)
 
 | `ActiveModel::Serializer::Adapter.adapter_map` | A Hash of all known adapters { adapter_name => adapter_class } |
 | `ActiveModel::Serializer::Adapter.adapters`    | A (sorted) Array of all known adapter_names |
-| `ActiveModel::Serializer::Adapter.get(name_or_klass)` |  The adapter_class, else raises an `ActiveModel::Serializer::Adapter::UnknownAdapter` error |
-| `ActiveModel::Serializer::Adapter.adapter_class(adapter)` | delegates to `ActiveModel::Serializer::Adapter.get(adapter)` |
-| `ActiveModel::Serializer.adapter` | a convenience method for `ActiveModel::Serializer::Adapter.get(config.adapter)` |
+| `ActiveModel::Serializer::Adapter.lookup(name_or_klass)` |  The adapter_class, else raises an `ActiveModel::Serializer::Adapter::UnknownAdapter` error |
+| `ActiveModel::Serializer::Adapter.adapter_class(adapter)` | delegates to `ActiveModel::Serializer::Adapter.lookup(adapter)` |
+| `ActiveModel::Serializer.adapter` | a convenience method for `ActiveModel::Serializer::Adapter.lookup(config.adapter)` |
 
 The registered adapter name is always a String, but may be looked up as a Symbol or String.
 Helpfully, the Symbol or String is underscored, so that `get(:my_adapter)` and `get("MyAdapter")`
diff --git a/lib/active_model/serializer.rb b/lib/active_model/serializer.rb
index f6bef4a1..29acbabf 100644
--- a/lib/active_model/serializer.rb
+++ b/lib/active_model/serializer.rb
@@ -94,9 +94,9 @@ module ActiveModel
       end
     end
 
-    # @see ActiveModel::Serializer::Adapter.get
+    # @see ActiveModel::Serializer::Adapter.lookup
     def self.adapter
-      ActiveModel::Serializer::Adapter.get(config.adapter)
+      ActiveModel::Serializer::Adapter.lookup(config.adapter)
     end
 
     def self.root_name
diff --git a/lib/active_model/serializer/adapter.rb b/lib/active_model/serializer/adapter.rb
index 3797c39e..093dc3f8 100644
--- a/lib/active_model/serializer/adapter.rb
+++ b/lib/active_model/serializer/adapter.rb
@@ -17,9 +17,9 @@ module ActiveModel
         klass.new(resource, options)
       end
 
-      # @see ActiveModel::Serializer::Adapter.get
+      # @see ActiveModel::Serializer::Adapter.lookup
       def self.adapter_class(adapter)
-        ActiveModel::Serializer::Adapter.get(adapter)
+        ActiveModel::Serializer::Adapter.lookup(adapter)
       end
 
       # Only the Adapter class has these methods.
@@ -49,7 +49,7 @@ module ActiveModel
         # @param  adapter [String, Symbol, Class] name to fetch adapter by
         # @return [ActiveModel::Serializer::Adapter] subclass of Adapter
         # @raise  [UnknownAdapterError]
-        def get(adapter)
+        def lookup(adapter)
           # 1. return if is a class
           return adapter if adapter.is_a?(Class)
           adapter_name = adapter.to_s.underscore
diff --git a/test/serializers/adapter_for_test.rb b/test/serializers/adapter_for_test.rb
index b246b404..5bab05ae 100644
--- a/test/serializers/adapter_for_test.rb
+++ b/test/serializers/adapter_for_test.rb
@@ -83,33 +83,33 @@ module ActiveModel
         ]
       end
 
-      def test_get_adapter_by_string_name
-        assert_equal ActiveModel::Serializer::Adapter.get('json'.freeze), ActiveModel::Serializer::Adapter::Json
+      def test_lookup_adapter_by_string_name
+        assert_equal ActiveModel::Serializer::Adapter.lookup('json'.freeze), ActiveModel::Serializer::Adapter::Json
       end
 
-      def test_get_adapter_by_symbol_name
-        assert_equal ActiveModel::Serializer::Adapter.get(:json), ActiveModel::Serializer::Adapter::Json
+      def test_lookup_adapter_by_symbol_name
+        assert_equal ActiveModel::Serializer::Adapter.lookup(:json), ActiveModel::Serializer::Adapter::Json
       end
 
-      def test_get_adapter_by_class
+      def test_lookup_adapter_by_class
         klass = ActiveModel::Serializer::Adapter::Json
-        assert_equal ActiveModel::Serializer::Adapter.get(klass), klass
+        assert_equal ActiveModel::Serializer::Adapter.lookup(klass), klass
       end
 
-      def test_get_adapter_from_environment_registers_adapter
+      def test_lookup_adapter_from_environment_registers_adapter
         ActiveModel::Serializer::Adapter.const_set(:AdapterFromEnvironment, Class.new)
         klass = ::ActiveModel::Serializer::Adapter::AdapterFromEnvironment
         name = 'adapter_from_environment'.freeze
-        assert_equal ActiveModel::Serializer::Adapter.get(name), klass
+        assert_equal ActiveModel::Serializer::Adapter.lookup(name), klass
         assert ActiveModel::Serializer::Adapter.adapters.include?(name)
       ensure
         ActiveModel::Serializer::Adapter.adapter_map.delete(name)
         ActiveModel::Serializer::Adapter.send(:remove_const, :AdapterFromEnvironment)
       end
 
-      def test_get_adapter_for_unknown_name
+      def test_lookup_adapter_for_unknown_name
         assert_raises UnknownAdapterError do
-          ActiveModel::Serializer::Adapter.get(:json_simple)
+          ActiveModel::Serializer::Adapter.lookup(:json_simple)
         end
       end
 
@@ -123,7 +123,7 @@ module ActiveModel
         new_adapter_klass = Class.new
         ActiveModel::Serializer::Adapter.register(new_adapter_name, new_adapter_klass)
         assert ActiveModel::Serializer::Adapter.adapters.include?('foo'.freeze)
-        assert ActiveModel::Serializer::Adapter.get(:foo), new_adapter_klass
+        assert ActiveModel::Serializer::Adapter.lookup(:foo), new_adapter_klass
       ensure
         ActiveModel::Serializer::Adapter.adapter_map.delete(new_adapter_name.to_s)
       end
@@ -132,7 +132,7 @@ module ActiveModel
         Object.const_set(:MyAdapter, Class.new)
         my_adapter = MyAdapter
         ActiveModel::Serializer::Adapter.inherited(my_adapter)
-        assert_equal ActiveModel::Serializer::Adapter.get(:my_adapter), my_adapter
+        assert_equal ActiveModel::Serializer::Adapter.lookup(:my_adapter), my_adapter
       ensure
         ActiveModel::Serializer::Adapter.adapter_map.delete('my_adapter'.freeze)
         Object.send(:remove_const, :MyAdapter)
@@ -143,7 +143,7 @@ module ActiveModel
         MyNamespace.const_set(:MyAdapter, Class.new)
         my_adapter = MyNamespace::MyAdapter
         ActiveModel::Serializer::Adapter.inherited(my_adapter)
-        assert_equal ActiveModel::Serializer::Adapter.get(:my_adapter), my_adapter
+        assert_equal ActiveModel::Serializer::Adapter.lookup(:my_adapter), my_adapter
       ensure
         ActiveModel::Serializer::Adapter.adapter_map.delete('my_adapter'.freeze)
         MyNamespace.send(:remove_const, :MyAdapter)
@@ -157,8 +157,8 @@ module ActiveModel
         my_subclassed_adapter = MySubclassedAdapter
         ActiveModel::Serializer::Adapter.inherited(my_adapter)
         ActiveModel::Serializer::Adapter.inherited(my_subclassed_adapter)
-        assert_equal ActiveModel::Serializer::Adapter.get(:my_adapter), my_adapter
-        assert_equal ActiveModel::Serializer::Adapter.get(:my_subclassed_adapter), my_subclassed_adapter
+        assert_equal ActiveModel::Serializer::Adapter.lookup(:my_adapter), my_adapter
+        assert_equal ActiveModel::Serializer::Adapter.lookup(:my_subclassed_adapter), my_subclassed_adapter
       ensure
         ActiveModel::Serializer::Adapter.adapter_map.delete('my_adapter'.freeze)
         ActiveModel::Serializer::Adapter.adapter_map.delete('my_subclassed_adapter'.freeze)