- Basically
- Crucially
- Fundamentally
- In itself
- Necessarily
- Slyest alien changed fundamentally
- To all intents and purposes, sent in the wrong sea lily
- Decisive
- Essential to review Plato around four
- Of crucial importance
- Vitally important
- Of or pertaining to a pivot or turning point; belonging
to, or constituting, a pivot; of the nature of a pivot; as, the
pivotalopportunity of a career; the pivotal position in a battle.
- Absolutely necessary
- Crucial
- Fundamental
- Inherent
- Linchpin
- Must-have
- Necessary