1) All but 2) Literally 1) Almost 2) As good as 3) Literally 4) Morally 5) Nearly 6) Nigh 
In mathematics, especially in the area of abstract algebra which studies infinite groups, the adverb virtually is used to modify a property so that it need only hold for a subgroup of finite index. Given a property P, the group G is said to be virtually P if there is a finite index subgroup H≤G such that H has property P. Common uses for this wo...
• (adv.) In a virtual manner; in efficacy or effect only, and not actually; to all intents and purposes; practically.
[Adverb] Almost, but not quite.
Vir'tu·al·ly adverb In a virtual manner; in efficacy or effect only, and not actually; to all intents and purposes; practically. 
almost, to all intents and purposes.
[adv] - in essence or effect but not in fact
virtually In effect even if not in fact. 2. Almost but not quite. 3. In respect of essence or effect, apart from actual form or specific manner; as far as essential qualities or facts are concerned.