Both are strong willed and determined, so if they can channel their combined forces into a common goal, great achievements are possible.Scorpio is intensely emotional and naturally passionate whereas Aquarius likes to feel free to share interests with many people. If Scorpio dominates there can be a clash and the rift ensures that the Aquarius can separate quickly.
Aquarius-Scorpio Compatibility

Scorpio takes love as an intensely personal matter whereas Aquarius treats it as universal love. Unless this difference is understood clearly between the two, Scorpio will feel that Aquarius is too impersonal and detached and their combination will not flourish. Astrologically speaking,all they have in common is their fixed signs,but putting the elements of fixed water and air together and we get a cold ice relationship. Even if this twosome tirade all the time at home, from dawn to dusk or never utter a peep and sleep in separate rooms,they'll present a united front to the world. After a day of toil the Scorpio likes to slump down a cozy bed whereas the Aqaurian likes to go fishing.

Aries (Mar 21-Apr 19) Taurus (April 20 - May 20) Gemini (May 21 - Jun 21)
Cancer(June 22 - July 22) Leo (July 23 - Aug 22) Virgo (Aug 23 - Sept 22)
Libra (Sep 23 - Oct 22) Scorpio (Oct 23 - Nov 21) Sagittarius(Nov 22-Dec 21)
Capricorn (Dec 22 - Jan 19) Aquarius (Jan 20 - Feb 18) Pisces (Feb 19 - Mar 20)

In general the above Generic compatibility analysis hold good for all zodiac signs. If you are looking for in-depth compatibility analysis or if you are a professional astrologer the below analysis of Zodiac signs Compatibility - between different gender of zodiac signs will give you detailed answer. Click the below link to learn more.

Aquarius Man

Aquarius Man Compatibility

Aquarius Man and
Scorpio Woman

Aquarius Woman

Aquarius Woman Compatibility

Aquarius Woman and
Scorpio Man