Difference between Useful and Important

USEFUL vs IMPORTANT: ADJECTIVE

Of great importance or use or service
Being of use or service
Having a useful function
Having a beneficial use; serviceable.
Being of practical use.
Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous.
Having a practical or beneficial use.
Capable of being turned to use or account

Of great significance or value
Having or suggesting a consciousness of high position
Having authority or ascendancy or influence
Important in effect or meaning
Of extreme importance; vital to the resolution of a crisis
Strongly affecting the course of events or the nature of things; significant.
Having high social rank or influence; prominent.
Importunate.
Full of, or burdened by, import; charged with great interests; restless; anxious.
Carrying or possessing weight or consequence; of valuable content or bearing; significant; weighty.
Bearing on; forcible; driving.
Importunate; pressing; urgent.
Having relevant and crucial value.

Being of use, advantage, or profit; valuable for use; suited or adapted to a purpose; producing or having power to produce good; beneficial; profitable; serviceable.
Useful invention.

Vital to the resolution of a crisis
Of extreme importance
[Appar. confused with importunate. Cf. importunate, 1.] Importunate; eager; pressing.
Consequential; pretentious; pompous: as, an important manner.
Of much import; bearing weight or consequence; momentous; grave; significant.

Recyclable, Multipurpose, Reusable, Reclaimable, Utilizable, Utile, Utilitarian, Serviceable, Functional, Useable, Usable, Practical, Important, Valuable, Helpful

Decisive, Remarkable, Great, Influential, Momentous, Significant, Noteworthy, Fundamental, Useful, Pivotal, Valuable, Key, Critical, Essential, Crucial

Recyclable, Multipurpose, Reusable, Reclaimable, Utilizable, Utile, Utilitarian, Serviceable, Functional, Useable, Usable, Practical, Important, Valuable, Helpful

Decisive, Remarkable, Great, Influential, Momentous, Significant, Noteworthy, Fundamental, Useful, Pivotal, Valuable, Key, Critical, Essential, Crucial

Get useful insights to help make better decisions.
This option is only useful to Guix developers.
Three additional categories of area formulas are useful.
They identify the useful energy forms and the desired output of the device, and the forms that are not useful for the intended use.
Useful Summation Formulas We can use the notation to indicate useful formulas that we will have occasion to use.
This is useful for maintaining correct release times for software and is particularly useful in conjunction with the MKS Make software development facility.
As always, if you find this article useful then others may find it useful too.
The guide is quite useful, and has useful pictures accompanying the text.
Gems of Useful Knowledge Life hacks, practical tips and overall useful information.
Please provide examples of how they are useful or not useful.

It is also important that we hear MPs.
Africa play an important role in human diseases.
What other tests are important with this disease?
Use emphasis sparingly, for your most important info.
All very important factors again in analyzing precedent.
It is important that procedures are followed, but it is also important that it can be shown and proved that procedures were followed.
It is important to look at your objectives for your retirement years to determine if it is important to protect your assets.
The President is important to the extent that the federal government is important.
Students illustrate an important event in the book and then explain in writing what took place and why it was important.
Building regulations have an important role to play, but we should not forget the important role of planning.