fundamental

1 - Young people have a fundamentally different approach to achieving happiness compared to previous generations.

2 - I see a more fundamental issue that I believe will cost us dear all season if it is not resolved.

3 - Virtually all female mammals, from rats to monkeys to humans, undergo fundamental behavioral changes during pregnancy and motherhood.

4 - Flexibility, the ability to adapt to circumstances in creative ways, is fundamental to the prospects of success in any area.

5 - Written communication is the fundamental basis of much communication in business.