'cast down' definitions:

Definition of 'cast down'

(from WordNet)
verb
Lower someone's spirits; make downhearted; "These news depressed her"; "The bad state of her child's health demoralizes her" [syn: depress, deject, cast down, get down, dismay, dispirit, demoralize, demoralise] [ant: elate, intoxicate, lift up, pick up, uplift]

Synonyms of 'cast down'

From: Moby Thesaurus