From
http://dictionary.reference.com/browse/hypothetical
hy⋅po⋅thet⋅i⋅cal
–adjective
1. assumed by hypothesis; supposed: a hypothetical case.
2. of, pertaining to, involving, or characterized by hypothesis: hypothetical reasoning.
3. given to making hypotheses.
4. Logic. a. (of a proposition) highly conjectural; not well supported by available evidence.
b. (of a proposition or syllogism) conditional.
–noun
5. a hypothetical situation, instance, etc.: The Secretary of Defense refused to discuss hypotheticals with the reporters.