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To download Nisus Thesaurus from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Nisus Thesaurus

By Nisus Software, Inc.

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With Nisus Thesaurus you get a fast electronic thesaurus that automatically integrates with any service aware application including Nisus Writer Express, Nisus Writer Pro, Mail, TextEdit, Safari, and more.


Screenshot 1

Customer Reviews


Brilliant, like all Nisus products… long time Mac users may well have used [and still use] Nisus word processors… if you haven't used them then they are now on the Mac App Store… they are by far and away the best WPs for the mac [or indeed other platforms, not that they are available beyond the Mac]… I already own Pro so can't review it here hence adding some words to their free [and extremely useful] Thesaurus… if you have MS Office, or use Pages [but want a real word processor] then have a look at either Nisus Writer Express [about £30] or Nisus Writer Pro [about £50] they are both rock solid clear, functional, examples of the sort of software which has made the mac great these last 20+ years...

Nisus Thesaurus

This app is fast and easy to use for any writing project. I use it in conjunction with iBooks Author (another great app!). The Nisus Thesaurus is invaluable when I get stuck for word or its antonym, and when I need more than one example of a verb, noun or adjective. It helps to keep the creative current flowing. Highly recommended.

Pretty Poor

Has very few matches for most words. I’ve just given up with it and bought the Chambers Thesaurus which seems much more comprehensive.

Nisus Thesaurus
View in Mac App Store
  • Free
  • Category: Reference
  • Released:
  • Version: 1.1
  • Size: 9.0 MB
  • Language: English
  • Developer:
Rated 12+ for the following:
  • Infrequent/Mild Profanity or Crude Humor
  • Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
  • Infrequent/Mild Mature/Suggestive Themes

Compatibility: OS X 10.6.6 or later

Customer Ratings

Current Version: