What is a floating adjective?

A floating adjective is not a formal grammatical term, but in linguistics and writing instruction it is used to describe an adjective that is not fixed directly next to the noun it modifies, or that seems to drift in a sentence and could apply to multiple things. More commonly, people use the term to refer to adjectives that describe something that is floating, such as floating itself used as an adjective. As an adjective, floating can describe many nouns, like a floating dock, a floating shelf that appears to hover without visible brackets, a floating point number in computing, a floating exchange rate in economics, a floating voter who is undecided, or a floating holiday that moves dates each year. In grammar discussions, a floating adjective might also refer to a misplaced or dangling modifier that appears to float between two possible nouns, creating ambiguity, like in the sentence With a broken leg, the dog found the man, where broken could be misread. In literary terms, floating adjectives are often ethereal, dreamy words like airy, buoyant, weightless, ephemeral, and drifting that create a sense of lightness. So the phrase usually means either the word floating used as a modifier or an adjective that is not clearly anchored in a sentence.