How to tell the noun form of an adjective or adjective form of a noun?

For example, adjective form of the noun "curiosity" is "curious".

  • 1
    To look up in a dictionary and remember, if you mean how to find. Do you have a particular noun/adjective that you can't find? If you mean suffixes, there are lots of other online resources to be searched before asking here - for example, this one.
    – Victor B.
    Commented Sep 17, 2016 at 8:15
  • @Rompey: Thank you! I just didn't know how to find. Like I wanted to know what is adjective of "decisiveness", which is "decisive". Commented Sep 17, 2016 at 8:19
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    That's pretty complicated, @GforOevOerD. There are hundreds of different suffixes that convert one word form to another learnthat.org/pages/view/suffix.html. Sometimes you have to add a suffix to convert a noun to an adjective wonder->wonderful, sometimes you have to remove a suffix decisiveness->decisive and sometimes you have to remove one suffix and add another. enjoyment-> enjoyable
    – JavaLatte
    Commented Sep 17, 2016 at 11:05
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    JavaLatte puts it very well. Not only does it depend on the particular word, but it sometimes depends on the meaning of the word too. For example, race/racial, but only when race means "ethnicity", not when it means "a contest".
    – stangdon
    Commented Sep 17, 2016 at 11:59
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    @GforoevOerd: the -ness suffix is appended to the adjective. swift, swiftness. Sometimes you need to convert a -y- to an -i-: speedy, speediness. happy, happiness.
    – TimR
    Commented Sep 17, 2016 at 12:48

1 Answer 1


Acutally, the wordhippo website does it quite well: https://www.wordhippo.com/

For example, when we search for an adjective for the noun flower, the website returns six adjectives:

  • flowery (pertaining to flowers, or decorated with or abundant in flowers)
  • flowered (a plant that has produced flowers, or something that is covered with flowers)
  • flowering (a plant that is in bloom)
  • flowerful (a poetic term meaning flowery or abundant in flowers)
  • flowerlike (resembling a flower, especially in shape
  • flowerless (without flowers)

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