activity, captivity, conductivity, creativity, festivity, insensitivity, nativity, negativity, proclivity, productivity, progressivity, relativity, selectivity.
Your query has returned 567 words, which include anagrams of reactivities as well as other shorter words that can be made using the letters included in reactivities.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.