gradual development

noun phrase
UK /ˈɡrædʒuəl dɪˈveləpmənt/
US /ˈɡrædʒuəl dɪˈveləpmənt/

Slow, steady growth or change over time.

The gradual development of the puppy into a big dog took many months.


OTHER MEANINGS

2. The process of becoming more advanced in small stages.

Her gradual development as a pianist came from daily practice.

3. A slow unfolding of a plan or idea.

The gradual development of the project took a whole year.

4. Steady improvement in a skill or ability.

Teachers watched the gradual development of his reading skills.