How to configure pocketsphinx in android so that it does not react to words that are not in the dictionary?

Question

Android

I did speech recognition on android using sphinx, everything works, but when I say those words that are not in the dictionary, it still recognizes them, gives out all sorts of nonsense, stupidly sorting through the words in the dictionary, I use pocketsphinx-android-5prealpha-release.
How can I make the sphinx not recognize those words that do not exist?

mRecognizer = SpeechRecognizerSetup.defaultSetup()
                            .setAcousticModel(hmmDir)
                            .setDictionary(dict)
                            .setKeywordThreshold(1e-7f)
                            .getRecognizer();

Here is the speech recognition setup code, of course, not all of it.