let-down vs worldly

let-down

• A disappointment or anticlimax. 

• The clearance of an aircraft to descend through clouds to clear air below, or the process of granting such a clearance. 

• The neurohormonal release of milk in dairy cows or in breastfeeding human mothers. 

worldly

• In a worldly manner. 

• Sophisticated, especially because of surfeit; versed in the ways of the world. 

• Concerned with secular rather than sacred matters. 

• Concerned with human or earthly matters, physical as opposed to spiritual.