Icon of program: Nisus Thesaurus

Nisus Thesaurus for Mac

By Nisus SoftwareFreeUser Rating

Key Details of Nisus Thesaurus

  • Thesaurus service, like OS X's built-in spell check.
  • Last updated on 8/23/2019
  • There have been 8 updates
  • Virus scan status:

    Clean (it's extremely likely that this software program is clean)

Editors' Review

Download.com staff

As a basic application for finding similar words, Nisus Thesaurus for Mac adds some functions that most users would find helpful, especially those who are writers. Its features add to those for spelling correction, already present in most Mac writing applications.

Nisus Thesaurus for Mac downloads as a ZIP archive with no installation needed. The program's main menu lacks graphics or creative design. Fortunately, its main search bar is at the top of the window, which is where most similar programs have them located. After entering a word and clicking the "Search" button, the program brings up word options. A left-hand menu organizes them by category, while a right-hand menu lists the individual words. Above the words, additional descriptions further organize the results. Clicking on individual words displays a full definition in an additional lower box. Information shown includes the pronunciation and word origins in addition to the meaning. Users can see the results of prior searches by clicking a drop-down arrow in the search box. The program returns results quickly and extensively, which is a big plus for this type of application. Additionally, this application seems to integrate well with services-enabled applications such as Safari, enabling users to look up selected words right from the Services menu.

As a thesaurus application, Nisus Thesaurus for Mac works well, despite its basic interface. This application will be welcomed by writers and content creators who need to quickly retrieve multiple words with the same meaning.

What's new in version 1.2

  • Added: Dark Mode.
  • Support for macOS 10.15 Catalina.
  • Requires macOS 10.11 (or later).

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Full Specifications

August 23, 2019
Latest update
August 23, 2019
Operating System
Mac OS X
Additional Requirements
macOS Catalina | macOS Mojave | macOS High Sierra | macOS Sierra | OS X El Capitan
Total Downloads
Downloads Last Week

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User Reviews


11 User Votes

Developer's Description

Thesaurus service, like OS X's built-in spell check.
Mac OS X comes with built-in spell checking for many applications, but why stop there? Now you can have an integrated thesaurus as well. With Nisus Thesaurus you get a fast electronic thesaurus that automatically integrates with any service aware application including Nisus Writer Express, Mail, TextEdit, Safari, and more.