1.
A perpetual feeling, state, or quality is one that never ends or changes.
...the creation of a perpetual union.
= permanent
ADJ: usu ADJ n
• perpetually
They were all perpetually starving...
= permanently
ADV: ADV with v, ADV adj/prep
2.
A perpetual act, situation, or state is one that happens again and again and so seems never to end.
I thought her perpetual complaints were going to prove too much for me.
= continual
ADJ: usu ADJ n
• perpetually
He perpetually interferes in political affairs.
= continually
ADV: ADV with v, ADV adj/prep