Part of our approach at times is to let randomness and happenstance to enter our process. Open yourself to chance by picking a random word to use as a source of inspiration.
Grab a book or dictionary that you have close at hand, and open to a random page and point to a random word. Don’t like that word? Pick another. Not ready to be completely random? Pick a random page, and choose a word to which you are drawn.
Just don’t do this repeatedly in order to pick that word you already have in mind or one that fits your mode of thinking. Let chance take you in a direction that you are not ready to go. If you find the word challenging, let it challenge you and see if you can respond to that word even if it’s the silliest most unusual word.