Sentence examples similar to it was really arduous from inspiring English sources

It was really hard.

"I was continually writing checks to my kid's school, and being a working mom, it was slowing me down…it was really arduous".

"[The C.U.P. process] is really arduous and it can be really disruptive to your business".  .

It was really, really, difficult.

It was really really really good, something I really appreciated.

It was really tough.

It was really exhausting.

It was really difficult.

It was really useful.

It was really scary.

It was really disappointing".