es·sen·su·al [uh-sen-shoo-uhl]
adjective

1. That which at its core is both critical to our survival and arousing or exciting to our base instincts: the senses and the appetites.
2. Being such by its very nature or in the highest meaning; the ultimate experience which elicits raw emotion.
3. That which every artisan seeks, sometimes called the ‘holy grail’ or ‘the best work I ever did that will never win an award because it’s way too personal and a little too weird’.
4. A type of project management lacking in restraints; raw and obsessively driven to identify and focus upon the core of each element. Often resulting in ’simple software’.

   Synonym: iPhone