This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Fastened in or to the soil: earthbound roots.

adj. Attached or confined to the earth or to earthly concerns: an earthbound existence.

adj. Unimaginative; ordinary.

adj. confined to the Earth

adj. unimaginative or mundane

adj. heading towards Earth

adj. confined to the earth

adj. lacking wit or imagination

"Outside, she'll be in your environment: earthbound, which is foreign to her."

earthly    uninteresting   

factory-loaded    serious-minded    earth-bound    unmoderated    uncompromised