compared to; in contrast to; unlike ~
Expresses contrast or comparison, meaning 'compared to' or 'in contrast to'.
This pattern highlights a stark contrast between two things, often implying that the second is notably different from the first. It can be used with nouns, verbs, and adjectives. When used with a noun, it often appears as 〜のに引き換え, but 〜に引き換え directly after a noun is also possible, especially in writing. With verbs and adjectives, use the plain past or non-past form.
The nuance is that the contrast is almost surprising or remarkable, often used in formal or written contexts. It is not common in daily casual conversation; you would more likely hear 〜と違って or 〜に比べて. In speech, it might sound a bit stiff, so reserve it for essays, reports, or formal presentations.
Note that the order matters: the first item is the basis for comparison, and the second is contrasted. The pattern can also be used at the beginning of a sentence to mean 'in contrast'.