Desirable and First class

Desirable adjective - Sexually attractive.

First class and desirable are semantically related In some cases you can replace phrase "First class" with "Desirable", this terms are similar.

Nearby Words: desire, desirous, desired, desirability, desiring

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

Desirable and first class are semantically related in honorable topic. Sometimes you can use "Desirable" instead an adjective phrase "First class", if it concerns topics such as superior, excellent.