second-class

(noun) not the highest rank in a classification. Synonyms: second class.

(noun) not the highest quality in a classification. Synonyms: second class.

(noun) a class of accommodations on a ship or train or plane that are less expensive than first class accommodations. Synonyms: cabin class, second class, economy class.

(adj) of inferior status or quality. Examples: "A second-class citizen." "Second-class accommodations."

(adv) by second class conveyance. Synonyms: second class. Examples: "We traveled second class."