smoothdevelopment
nounUK /smuːð dɪˈvɛləpmənt/
US /smuːð dɪˈvɛləpmənt/
A time when things grow or get better without any problems.
The smooth development of the little garden made everyone happy.
OTHER MEANINGS
2. The easy and steady building of something, like a project or plan.
The smooth development of the school playground took only a few weeks.
3. A calm and trouble-free change from one stage to another.
The smooth development from spring to summer brought warm, sunny days.
4. The gentle and even shaping of something over time.
The smooth development of the river's path carved a pretty curve in the land.