unavailability
— Noun
– English
~ the quality of not being available when needed
unavoidability
— Noun
– English
~ the quality of being impossible to avoid or evade
unavoidable casualty
— Noun
– English
~ a natural and unavoidable catastrophe that interrupts the expected course of events; "he discovered that his house was not insured against acts of God"
unawareness
— Noun
– English
~ unconsciousness resulting from lack of knowledge or attention
unbalance
— Noun
– English
~ a lack of balance or state of disequilibrium; "a hormonal imbalance"
unbalance
— Noun
– English
~ a state of mental disturbance and disorientation
unbecomingness
— Noun
– English
~ the quality of being unbecoming
uncertainness
— Noun
– English
~ being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income"
uncertainty
— Noun
– English
~ the state of being unsure of something
uncertainty
— Noun
– English
~ being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income"
uncertainty principle
— Noun
– English
~ (quantum theory) the theory that it is impossible to measure both energy and time (or position and momentum) completely accurately at the same time
unchangeability
— Noun
– English
~ the quality of being unchangeable; having a marked tendency to remain unchanged
unchangeableness
— Noun
– English
~ the quality of being unchangeable; having a marked tendency to remain unchanged