well-nigh 
adverb
Almost: a task that is well-nigh impossible...
- ‘It is an uphill and well-nigh impossible task,’ he wrote.
- He never wrote a paper without foot-notes, appendices, supplements, and the alterations and corrections in his proofs were such that the printers found their task well-nigh impossible.…
- This presents the artist with a well-nigh impossible task.
Synonyms
almost, nearly, just about, about, more or less, practically, virtually, all but, as good as, next to, close to, near, nigh on, to all intents and purposes, approaching, bordering on, verging on, nearing;
roughly, approximately;
not quite
informal pretty nearly, pretty much, pretty well
- vassalage
- vast
- vastation
- vastitude
- get one's oats
- get one's own back
- get one's rocks off
- get one's shit together
- get one's skates on
- get one's tongue round
- get one's wires crossed
- get one's wires (or lines) crossed
- get on (or along) like a house on fire
- get on someone's nerves
- get on someone's tits
- get on someone's wick
- get on to
- get on top of
- get (or be) even
- get (or be given) a guernsey
- get (or be given) the gate
- get (or be) in on the act
- get (or be or go) beyond a joke
- get (or be) shot of
- get (or be) spliced