nineteen-fifties
noun
- decade 1950-1959
Wiktionary
noun
- Alternative form of 1950s.
“In the nineteen-fifties, the height of aspirational style was fine French furniture—F.F.F., as it became known in certain precincts of Fifth Avenue and Palm Beach.”
“The nineteen-fifties was also a time when literary publishers were frequently indicted for obscenity.”