1. adjective If something is earthbound, it is unable to fly, or is on the ground rather than in the air or in space. ⇒ ...earthbound telescopes. ⇒ The earthbound larvae from which they develop are less pretty, but just as predatory. 2. graded adjective If you describe someone or something as earthbound, you mean that they do not have very much imagination. ⇒ ...the daughter of a stolid, earthbound salesman and a wild actress.
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