let someone down
- disappointFail to meet expectations
- betrayViolate a trust
- failBe unsuccessful
- abandonLeave behind permanently
- breakInterrupt continuity
promise · trust · hurt · sorry · guilt · shame · regret · crushed · heartbroken · tears · apologize · forgive · neglect · desert · empty · hollow · fallen · shattered
reliability and meeting expectations
let someone downkeep one's word
Honor a commitment made
deliver · follow through · pull through · come through · have someone's back
emotional impact on another person
let someone downexceed expectations
do someone proud · uplift · delight · impress · rise to the occasion