Youll probably find the right word with this tool

"Thesaurus" (original name!) goes beyond the conventional book-derived presentation of a list of words, to harness the power of the computer to help your search.

For example, the Sort and Refine tools enable you to specify the desired words complexity, length, even the number of syllables. (Ideal for poets — Dylan Thomas used a thesaurus.)

If the word youre looking for exists, this tool gives you your best shot at finding it. Highly recommended by a guy who makes his living with words.

John Mulvihill about Thesaurus Rex by Dictionary.com, v1.1