diff --git a/src/core/services/tokenizer/yomitan-parser-runtime.test.ts b/src/core/services/tokenizer/yomitan-parser-runtime.test.ts
index 352ecc0..b332313 100644
--- a/src/core/services/tokenizer/yomitan-parser-runtime.test.ts
+++ b/src/core/services/tokenizer/yomitan-parser-runtime.test.ts
@@ -656,7 +656,7 @@ test('getYomitanDictionaryInfo requests dictionary info via backend action', asy
   assert.match(scriptValue, /getDictionaryInfo/);
 });
 
-test('dictionary settings helpers upsert and remove dictionary entries', async () => {
+test('dictionary settings helpers upsert and remove dictionary entries without reordering', async () => {
   const scripts: string[] = [];
   const optionsFull = {
     profileCurrent: 0,
diff --git a/src/core/services/tokenizer/yomitan-parser-runtime.ts b/src/core/services/tokenizer/yomitan-parser-runtime.ts
index 6bf280c..dad4930 100644
--- a/src/core/services/tokenizer/yomitan-parser-runtime.ts
+++ b/src/core/services/tokenizer/yomitan-parser-runtime.ts
@@ -1676,7 +1676,7 @@ export async function upsertYomitanDictionarySettings(
       continue;
     }
 
-    dictionaries.unshift(createDefaultDictionarySettings(normalizedTitle, true));
+    dictionaries.push(createDefaultDictionarySettings(normalizedTitle, true));
     changed = true;
   }
 
diff --git a/src/yomitan-translator-sort.test.ts b/src/yomitan-translator-sort.test.ts
new file mode 100644
index 0000000..38cae63
--- /dev/null
+++ b/src/yomitan-translator-sort.test.ts
@@ -0,0 +1,93 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+// @ts-expect-error Vendored Yomitan translator has no local TypeScript declarations.
+import { Translator } from '../vendor/yomitan/js/language/translator.js';
+
+type SortableTermEntry = {
+  matchPrimaryReading: boolean;
+  maxOriginalTextLength: number;
+  textProcessorRuleChainCandidates: unknown[];
+  inflectionRuleChainCandidates: unknown[];
+  sourceTermExactMatchCount: number;
+  frequencyOrder: number;
+  dictionaryIndex: number;
+  score: number;
+  dictionaryAlias: string;
+  headwords: Array<{ term: string }>;
+  definitions: Array<{ dictionary: string }>;
+};
+
+type SortableDefinition = {
+  dictionary: string;
+  dictionaryAlias: string;
+  frequencyOrder: number;
+  dictionaryIndex: number;
+  score: number;
+  headwordIndices: number[];
+  index: number;
+};
+
+test('Translator prioritizes SubMiner term entries without changing dictionary index order', () => {
+  const translator = new Translator({});
+  const entries: SortableTermEntry[] = [
+    {
+      matchPrimaryReading: true,
+      maxOriginalTextLength: 4,
+      textProcessorRuleChainCandidates: [],
+      inflectionRuleChainCandidates: [],
+      sourceTermExactMatchCount: 1,
+      frequencyOrder: 0,
+      dictionaryIndex: 0,
+      score: 10,
+      dictionaryAlias: 'JMdict',
+      headwords: [{ term: 'アイリス' }],
+      definitions: [{ dictionary: 'JMdict' }],
+    },
+    {
+      matchPrimaryReading: true,
+      maxOriginalTextLength: 4,
+      textProcessorRuleChainCandidates: [],
+      inflectionRuleChainCandidates: [],
+      sourceTermExactMatchCount: 1,
+      frequencyOrder: 99,
+      dictionaryIndex: 99,
+      score: 1,
+      dictionaryAlias: 'SubMiner Character Dictionary',
+      headwords: [{ term: 'アイリス' }],
+      definitions: [{ dictionary: 'SubMiner Character Dictionary' }],
+    },
+  ];
+
+  translator._sortTermDictionaryEntries(entries as unknown[]);
+
+  assert.equal(entries[0]?.dictionaryAlias, 'SubMiner Character Dictionary');
+});
+
+test('Translator prioritizes SubMiner definitions without changing dictionary index order', () => {
+  const translator = new Translator({});
+  const definitions: SortableDefinition[] = [
+    {
+      dictionary: 'JMdict',
+      dictionaryAlias: 'JMdict',
+      frequencyOrder: 0,
+      dictionaryIndex: 0,
+      score: 10,
+      headwordIndices: [0],
+      index: 0,
+    },
+    {
+      dictionary: 'SubMiner Character Dictionary',
+      dictionaryAlias: 'SubMiner Character Dictionary',
+      frequencyOrder: 99,
+      dictionaryIndex: 99,
+      score: 1,
+      headwordIndices: [0],
+      index: 1,
+    },
+  ];
+
+  translator._sortTermDictionaryEntryDefinitions(definitions as unknown[]);
+
+  assert.equal(definitions[0]?.dictionaryAlias, 'SubMiner Character Dictionary');
+});
diff --git a/vendor/yomitan/js/language/translator.js b/vendor/yomitan/js/language/translator.js
index 90051f1..a0f620b 100644
--- a/vendor/yomitan/js/language/translator.js
+++ b/vendor/yomitan/js/language/translator.js
@@ -25,6 +25,8 @@ import {getAllLanguageReadingNormalizers, getAllLanguageTextProcessors} from './
 import {MultiLanguageTransformer} from './multi-language-transformer.js';
 import {isCodePointChinese} from './zh/chinese.js';
 
+const SUBMINER_DICTIONARY_TITLE_PREFIX = 'SubMiner Character Dictionary';
+
 /**
  * Class which finds term and kanji dictionary entries for text.
  */
@@ -1531,6 +1533,23 @@ export class Translator {
         return Array.isArray(value) ? value : (typeof value === 'number' ? [value] : []);
     }
 
+    /**
+     * @param {string|undefined} value
+     * @returns {boolean}
+     */
+    _isSubMinerDictionary(value) {
+        return typeof value === 'string' && value.startsWith(SUBMINER_DICTIONARY_TITLE_PREFIX);
+    }
+
+    /**
+     * @param {string|undefined} dictionary
+     * @param {string|undefined} dictionaryAlias
+     * @returns {number}
+     */
+    _getSubMinerDictionarySortBoost(dictionary, dictionaryAlias) {
+        return (this._isSubMinerDictionary(dictionary) || this._isSubMinerDictionary(dictionaryAlias)) ? 1 : 0;
+    }
+
     // Kanji data
 
     /**
@@ -2162,6 +2181,10 @@ export class Translator {
             i = v2.sourceTermExactMatchCount - v1.sourceTermExactMatchCount;
             if (i !== 0) { return i; }
 
+            // Prefer SubMiner character dictionary entries without changing user dictionary order.
+            i = this._getSubMinerDictionarySortBoost(v2.definitions[0]?.dictionary, v2.dictionaryAlias) - this._getSubMinerDictionarySortBoost(v1.definitions[0]?.dictionary, v1.dictionaryAlias);
+            if (i !== 0) { return i; }
+
             // Sort by frequency order
             i = v1.frequencyOrder - v2.frequencyOrder;
             if (i !== 0) { return i; }
@@ -2205,8 +2228,12 @@ export class Translator {
          * @returns {number}
          */
         const compareFunction = (v1, v2) => {
+            // Prefer SubMiner character dictionary definitions without changing user dictionary order.
+            let i = this._getSubMinerDictionarySortBoost(v2.dictionary, v2.dictionaryAlias) - this._getSubMinerDictionarySortBoost(v1.dictionary, v1.dictionaryAlias);
+            if (i !== 0) { return i; }
+
             // Sort by frequency order
-            let i = v1.frequencyOrder - v2.frequencyOrder;
+            i = v1.frequencyOrder - v2.frequencyOrder;
             if (i !== 0) { return i; }
 
             // Sort by dictionary order