Synonyms of letting down

Noun

1. lowering, letting down, movement

usage: the act of causing something to move to a lower level

Verb

1. lower, take down, let down, get down, bring down, move, displace

usage: move something or somebody to a lower position; "take down the vase from the shelf"

2. disappoint, let down, thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk

usage: fail to meet the hopes or expectations of; "Her boyfriend let her down when he did not propose marriage"