essentialchange

noun
UK /ɪˈsɛnʃəl tʃeɪndʒ/
US /ɪˈsɛnʃəl tʃeɪndʒ/

A change that you really need to make.

Getting more sleep was an essential change for the tired puppy.


OTHER MEANINGS

2. A change that is needed for something to work well.

The teacher made an essential change to the schedule so everyone could play.

3. A very important difference that fixes a problem.

Fixing the leaky roof was an essential change for the family.

4. A basic or fundamental shift in how something is done.

The new rule was an essential change to how the game is played.