How to Fix Word for Mac Thesaurus Not Showing Synonyms
Question details
The user is unable to view synonyms when control-clicking a word or opening the Thesaurus pane in specific documents, despite the feature working correctly in other files.

- Product
- Microsoft Word for Mac
- Device & OS
- macOS
- Scenario
- Attempting to use the Thesaurus feature to find synonyms for selected words while editing a document.
- Observed behavior
- Synonyms fail to display in the context menu or Thesaurus pane for certain documents. The pane may open, but no alternative words are suggested.
Before troubleshooting, ensure that your Mac is connected to the internet, as some Office dictionary features require an active connection, and verify that the document is not locked for editing by another user.
Set and Apply the Correct Proofing Language
The most common reason for missing synonyms is that the text is assigned to a language not supported by your installed Thesaurus dictionary. Applying a consistent, supported language resolves this.
Microsoft Word relies on the document's assigned proofing language to generate synonyms. If the text was pasted from another source or inadvertently set to a language without a dictionary installed, the Thesaurus will return blank results.
Click anywhere inside your document and press Cmd + A on your keyboard to highlight all the text in the file.
Navigate to the top menu bar, click on 'Tools', and select 'Language' from the dropdown menu.
In the Language dialog box, select your preferred language (e.g., English (US)). Ensure that the box for 'Do not check spelling or grammar' is unchecked, then click OK.

Change the Document Access Mode
Synonyms will not generate if the document is in Read-Only or Viewing mode.
Experience Seamless Writing with WPS Office for Mac
If you frequently encounter dictionary or thesaurus glitches in Microsoft Word for Mac, consider switching to WPS Office. It provides a highly compatible, free alternative with robust built-in writing tools designed to work flawlessly on macOS.
- 1. Download WPS Office: Visit the official WPS website, download the macOS installer, and follow the simple setup instructions.
- 2. Open your Document: Launch WPS Writer and open your existing .docx file directly without any format conversion.
- 3. Access Writing Tools: Highlight any word and easily access integrated writing tools to find synonyms and check spelling without complex language configurations.

Frequently Asked Questions
Why does the Thesaurus work in some Word documents but not others?
This usually happens because proofing languages are saved at the document or text level. If a specific document is formatted with a language that lacks an installed dictionary on your Mac, the Thesaurus will not display synonyms for that file.
Why is the Thesaurus option completely grayed out in the context menu?
The Thesaurus option may be grayed out if the document is in a protected view, set to read-only, or if no valid text is currently selected. You must be in an active editing mode to access it.
Can I add new synonym dictionaries to Word for Mac?
Yes, you can add new proofing tools by going to the 'Tools' > 'Language' menu. Selecting a new language will prompt Office to use the respective dictionary, provided it is supported and installed with your Office package.




