This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.
If a word conforms to a special rule, I call it a Unbeecoming Word™.
Use the following examples below to find the rule.
And, if you want to analyze, here is a CSV version:
Unbeecoming Words™,Not Unbeecoming Words™ FASHION,STYLE FORMULA,RECIPE FUNKY,WEIRD INFORM,EDUCATE INFORMAL,CASUAL JOURNALISM,REPORTING LIQUOR,BEER MASONRY,BRICKWORK SAILOR,MIDSHIPMAN SQUAWK,SQUEAL SQUIRM,WIGGLE UNFAIR,CRUEL UNIFORMS,OUTFITS URINAL,TOILET