I was sedentary for far too long.
To remain sedentary is to be at peace.
Once you recuperate from the illness, we can continue on our journey.
The moment someone recuperates, they are sent on another challenge.
The arguments made have to be well-substantiated.
Despite appearing ready, the presentation wasn’t well-substantiated.
I couldn’t deal with the monotony of the job, so I left.
Monotony is the most difficult part of the job.