Strong’s Greek
G277 — ametakinetos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀμετακίνητος
ametakinetos — pronounced am-et-ak-in'-ay-tos
from 1 (as a negative particle) and a derivative of 3334; immovable:--unmovable. see GREEK for 1 see GREEK for 3334
1 occurrence in the KJV.
1 Corinthians 15:58
Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.