Synonyms for failures

Opposite of success

failings, fails, lacks, faults, errors, shortcomings, deteriorations, neglects, insufficiencies, declines, fiascos, deficiencies, omissions, derelictions, botches, misses, lapses, miscarriages, oversights, decays, defaults, fizzles

Loser

losers, duds

Disappointment

disappointments, frustrations, balks

Other

losses, bankruptcies, defections, crashes, insolvencies, never-was-ers, nonstarters, nonperformances, nonobservances, nonsuccesses