opting out

Refusing to participate

Opting out is choosing not to participate in something you would otherwise be included in by default.

The phrase implies withdrawal from an existing arrangement rather than simply declining: You can opt out of marketing emails.

It contrasts with opting in, where participation requires active choice.

Common in contexts of privacy settings, mailing lists, and institutional programs.

Opposites
participation choice

opting outopting in

Choosing to participate

joining in · signing up · participating · enrolling · signing on

engagement level

opting outengaging

Pleasantly attractive, compelling attention

diving in · plunging in · embracing · taking part · jumping in

commitment level

opting outcommitting

Carrying out an act

buying in · embracing · going all in · diving in · investing

Family

out, option, options, optional, opt, optimize, opted, optimization, opts

Familiarity
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Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G