English learners have a hard time describing what they feel. Maybe they know what they want to say, but they don't remember the right verb, adjective, etc. The way to learn this, is by reading and becoming competent in using exactly the term they were looking for. But it takes time, and lots of effort. A way to make it easier for the learner, is to use a reverse dictionary. This tool can let you put the definition, and it will give you the term, or word you were looking for.
http://www.onelook.com/reverse-dictionary.shtml
http://www.onelook.com/reverse-dictionary.shtml
