Antonyms are words that have opposite meanings from another word. When it comes to spectrometry mass fast atom bombardment, the antonyms are not related to this technical term. However, some antonyms of the words used in this term are as follows. Spectrometry's antonyms are inaccuracy, imprecision, and indistinctness. Mass's antonyms are lightness, thinness, and emptiness. Fast's antonyms are slow, delayed, and sluggish. Atom's antonyms are molecule, compound, and element. Bombardment's antonyms are sparing, neglect, and untouched. Each antonym conveys the opposite meaning for the used term and can help to write a well-informed scientific article.