diff --git a/packages/-ember-data/tests/helpers/store.js b/packages/-ember-data/tests/helpers/store.js
index 211b7e64823..f74d04e7e2b 100644
--- a/packages/-ember-data/tests/helpers/store.js
+++ b/packages/-ember-data/tests/helpers/store.js
@@ -4,7 +4,6 @@ import EmberObject from '@ember/object';
 import Ember from 'ember';
 import Store from 'ember-data/store';
 import JSONAPIAdapter from '@ember-data/adapter/json-api';
-import RESTAdapter from '@ember-data/adapter/rest';
 import Adapter from '@ember-data/adapter';
 import JSONAPISerializer from '@ember-data/serializer/json-api';
 import RESTSerializer from '@ember-data/serializer/rest';
@@ -72,7 +71,6 @@ export default function setupStore(options) {
   owner.register('serializer:-json', JSONSerializer);
   owner.register('serializer:-rest', RESTSerializer);
   owner.register('adapter:-default', Adapter);
-  owner.register('adapter:-rest', RESTAdapter);
   owner.register('adapter:-json-api', JSONAPIAdapter);
 
   owner.inject('serializer', 'store', 'service:store');
diff --git a/packages/-ember-data/tests/integration/store/adapter-for-test.js b/packages/-ember-data/tests/integration/store/adapter-for-test.js
index e62e9289fd6..0c729ae3896 100644
--- a/packages/-ember-data/tests/integration/store/adapter-for-test.js
+++ b/packages/-ember-data/tests/integration/store/adapter-for-test.js
@@ -154,7 +154,7 @@ module('integration/store - adapterFor', function(hooks) {
   });
 
   test('we can specify a fallback adapter by name in place of the application adapter', async function(assert) {
-    store.adapter = '-rest';
+    store.adapter = '-fallback';
     let { owner } = this;
 
     let didInstantiateRestAdapter = false;
@@ -164,29 +164,29 @@ module('integration/store - adapterFor', function(hooks) {
         didInstantiateRestAdapter = true;
       }
     }
-    owner.register('adapter:-rest', RestAdapter);
+    owner.register('adapter:-fallback', RestAdapter);
 
     let adapter = store.adapterFor('person');
 
-    assert.ok(adapter instanceof RestAdapter, 'We found the fallback -rest adapter for person');
+    assert.ok(adapter instanceof RestAdapter, 'We found the -fallback adapter for person');
     assert.ok(didInstantiateRestAdapter, 'We instantiated the adapter');
     didInstantiateRestAdapter = false;
 
     let appAdapter = store.adapterFor('application');
 
-    assert.ok(appAdapter instanceof RestAdapter, 'We found the fallback -rest adapter for application');
+    assert.ok(appAdapter instanceof RestAdapter, 'We found the -fallback adapter for application');
     assert.ok(!didInstantiateRestAdapter, 'We did not instantiate the adapter again');
     didInstantiateRestAdapter = false;
 
-    let restAdapter = store.adapterFor('-rest');
+    let restAdapter = store.adapterFor('-fallback');
     assert.ok(restAdapter instanceof RestAdapter, 'We found the correct adapter');
     assert.ok(!didInstantiateRestAdapter, 'We did not instantiate the adapter again');
-    assert.ok(restAdapter === adapter, 'We fell back to the -rest adapter instance for the person adapters');
-    assert.ok(restAdapter === appAdapter, 'We fell back to the -rest adapter instance for the application adapter');
+    assert.ok(restAdapter === adapter, 'We fell back to the -fallback adapter instance for the person adapters');
+    assert.ok(restAdapter === appAdapter, 'We fell back to the -fallback adapter instance for the application adapter');
   });
 
   test('the application adapter has higher precedence than a fallback adapter defined via store.adapter', async function(assert) {
-    store.adapter = '-rest';
+    store.adapter = '-fallback';
     let { owner } = this;
 
     let didInstantiateAppAdapter = false;
@@ -205,12 +205,12 @@ module('integration/store - adapterFor', function(hooks) {
     }
 
     owner.register('adapter:application', AppAdapter);
-    owner.register('adapter:-rest', RestAdapter);
+    owner.register('adapter:-fallback', RestAdapter);
 
     let adapter = store.adapterFor('person');
 
     assert.ok(adapter instanceof AppAdapter, 'We found the store specified fallback adapter');
-    assert.ok(!didInstantiateRestAdapter, 'We did not instantiate the store.adapter (-rest) adapter');
+    assert.ok(!didInstantiateRestAdapter, 'We did not instantiate the store.adapter (-fallback) adapter');
     assert.ok(didInstantiateAppAdapter, 'We instantiated the application adapter');
     didInstantiateRestAdapter = false;
     didInstantiateAppAdapter = false;
@@ -223,38 +223,13 @@ module('integration/store - adapterFor', function(hooks) {
     didInstantiateRestAdapter = false;
     didInstantiateAppAdapter = false;
 
-    let restAdapter = store.adapterFor('-rest');
-    assert.ok(restAdapter instanceof RestAdapter, 'We found the correct adapter for -rest');
+    let restAdapter = store.adapterFor('-fallback');
+    assert.ok(restAdapter instanceof RestAdapter, 'We found the correct adapter for -fallback');
     assert.ok(!didInstantiateAppAdapter, 'We did not instantiate the application adapter again');
     assert.ok(didInstantiateRestAdapter, 'We instantiated the fallback adapter');
     assert.ok(restAdapter !== appAdapter, `We did not use the application adapter instance`);
   });
 
-  test('we can specify a fallback adapter by name in place of the application adapter', async function(assert) {
-    store.adapter = '-rest';
-    let { owner } = this;
-
-    let didInstantiateRestAdapter = false;
-
-    class RestAdapter extends TestAdapter {
-      didInit() {
-        didInstantiateRestAdapter = true;
-      }
-    }
-    owner.register('adapter:-rest', RestAdapter);
-
-    let adapter = store.adapterFor('application');
-
-    assert.ok(adapter instanceof RestAdapter, 'We found the adapter');
-    assert.ok(didInstantiateRestAdapter, 'We instantiated the adapter');
-    didInstantiateRestAdapter = false;
-
-    let restAdapter = store.adapterFor('-rest');
-    assert.ok(restAdapter instanceof RestAdapter, 'We found the correct adapter');
-    assert.ok(!didInstantiateRestAdapter, 'We did not instantiate the adapter again');
-    assert.ok(restAdapter === adapter, 'We fell back to the -rest adapter instance for the application adapter');
-  });
-
   test('When the per-type, application and specified fallback adapters do not exist, we fallback to the -json-api adapter', async function(assert) {
     store.adapter = '-not-a-real-adapter';
     let { owner } = this;
diff --git a/packages/-ember-data/tests/unit/store/adapter-interop-test.js b/packages/-ember-data/tests/unit/store/adapter-interop-test.js
index 6b12ff0a606..95801fc6a39 100644
--- a/packages/-ember-data/tests/unit/store/adapter-interop-test.js
+++ b/packages/-ember-data/tests/unit/store/adapter-interop-test.js
@@ -32,7 +32,7 @@ module('unit/store/adapter-interop - DS.Store working with a DS.Adapter', functi
   });
 
   test('Adapter can be set as a name', function(assert) {
-    store = createStore({ adapter: '-rest' });
+    store = createStore({ adapter: 'application' });
 
     assert.ok(store.get('defaultAdapter') instanceof DS.RESTAdapter);
   });