Answer is:
antidisestablishmentarianism
First part:
anti for negative, auntie for relationship (thanks @IT Alex)
Second part:
dis as slang for this
Third:
establish as a foundation
Fourth:
ment as in meant?
Fifth:
ari sounds like air, close enough?
Sixth:
realisation or realization?
ism - a distinctive practice, system, or philosophy, typically a political ideology or an artistic movement.