Which is more formal in register, opt-out of something or withdraw from something?

Are there any more formal ways to phrase the idea?

  • 2
    To opt out [of] means to choose not to be involved in. This can include to choose not to get involved in. However, to withdraw from something requires that you are already involved, if only as a candidate. – Edwin Ashworth Feb 25 '15 at 17:25
  • Then what? Pulling out of sth? – ernest58 Feb 25 '15 at 17:37
  • Choose not to enter / get involved in/with vs Elect to leave / Quit / Leave ... There are many synonyms. – Edwin Ashworth Feb 25 '15 at 17:56
  • 1
    What is the context? In international law, for example, opting out is rather different from withdrawal when it comes to treaties. – choster Feb 25 '15 at 19:15
  • "Withdrawal from/An opt-out of the project is the latest in a series of blows to industry reliant on high cost production struggling with oil prices at six-year lows." – ernest58 Feb 25 '15 at 19:51

For a formal register, I would say ...

"I do not elect to participate"


"I withdraw (from consideration, participation, etc.)

rather than opt-out.

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