single word with this meaning

Is there a single english word with the meaning "almost totally"?

[RonBee]

Synonyms: about, about to, all but, approximately, around, bordering on, close to, close upon, essentially, in effect, just about, most, much, near to, nigh, not quite, practically, pretty near, relatively, roughly, substantially, virtually, well-nigh

Perhaps "substantially" comes closest there.

Synonyms: almost, approximately, close to, in general, more or less, near, nearly, roughly

Perhaps "roughly" comes closest there. Or "close to" or "nearly" might be better.

Synonyms: all but, almost, anyhow, approximately, around, near, nearly

Perhaps "nearly" comes closest there.