1 afar, far-away or -off, a good or great or long way or distance off or away:
We caught sight of a sail far to the south.
2 (very) much, considerably, decidedly, incomparably:
She is a far better swimmer than George.
3 by far. (very) much, considerably, decidedly, incomparably, (im)measurably, by a long shot, far and away, clearly, plainly, obviously, doubtless(ly), indubitably, undoubtedly, definitely, beyond (the shadow of a) doubt, without a doubt, Colloq Brit by a long chalk:
She's a better swimmer than George by far. He is by far the wealthiest person I know.
4 far and wide. everywhere, near and far or far and near, extensively, widely, high and low; here, there, and everywhere:
We searched far and wide to find these specimens.
5 far gone.
(a) beyond or past help, advanced, deteriorated, worn out, dilapidated, near the end:
That shirt is too far gone to send to the laundry. My house is so far gone it's beyond repair.
(b) drunk, besotted, Slang loaded, pissed, paralytic, paralysed:
He's too far gone to walk.
6 go far.
(a) progress, advance, succeed, go places, get ahead, rise (in the world), make a name for oneself, become successful, set the world on fire, Brit set the Thames on fire, US cut a swath:
He is a very bright youngster and I'm sure he will go far in whatever profession he chooses.
(b) help, aid, contribute, play a part:
The new law will go far towards inhibiting child abuse.
7 go too far. go overboard or over the top, not know when to stop, go to extremes; exceed, overdo, overstep, transcend, go beyond:
Ambition is one thing, but he went too far when he tried to get his boss's job.
8 so far.
(a) thus far, (up) to or till or until now or the present or this point, to date, to this point in time:
So far, we have been able to keep up with the mortgage payments.
(b) to a certain extent or limit or point:
She said she would go just so far and no further.
9 (more) remote or distant, far-away, far-off; extreme, further, farther, farthest:
She claimed the ability to see into the far future. He kicked the ball to the far end of the field.