Liu interjected that the unavailability of private money was backed up by a Congressional Budget Office report.
Illinois State forests will always be smaller than those of other states because of the unavailability of low valued land.
1855, from un- (1) "not" + availability.
mid-15c., "beneficial," also "valid, effective, capable of producing the desired effect," from avail + -able. Meaning "at one's disposal, capable of being made use of" is recorded from 1827.