Your best bet is to describe exactly what you do want to see. However, be aware that negative prompting does not work.
Do not say "no beard" or "without beard". The model does not understand the concept of a word being negated by the word in front of it. So using "not [X]", "no [X]", "exclude [X]", "with no [X]", and "without [X]" does not work. When you use a negating word, the model ignores the negation word and adds to the image the thing you are trying to avoid. You basically need to find "positive" words and phrases telling the model what you want to see rather than telling it what you do not want to see. Such as "flat land" rather than "no mountains" or "desolate" rather than "no people". If I am not sure how to describe something I want to exclude in a positive way, I will ask Google Gemini or ChatGPT for ideas. Just be aware that when they give prompts, they are usually too wordy and conversational, so you have to edit them, but they are good for ideas.
I will add that beards appear to be a special case. They are very hard to get rid of. You can see here that even with this long prompt, not all the images are without beards:
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