Adjective
Outdated or no longer in vogue.
My bike is Flintstonian but it gets me around.
Preferring the customs of earlier times.
You can't stay the night: my parents are a bit Flintstonian.
Evoking the Flintstones cartoon series.
The brakes on my bike failed, so I had to come to a Flintstonian stop, that is, by dragging my feet on the pavement.