supersession

Ousting the previous

Supersession is the act of replacing something with something else, or the state of having been replaced.

Laws undergo supersession when new legislation takes their place.

Technologies face supersession as newer innovations emerge: The supersession of film by digital photography happened faster than anyone predicted.

The word is formal, appearing mainly in legal and academic contexts.

replacement

succession

Following in order

takeover · changeover · transition · swap · exchange · handover · turnover · switchover · alternation · rotation

legal

annulment

Declared void from start

rescission · nullification · invalidation · override · preemption · countermand · vacatur · reversal · cancellation · voiding

hierarchy

usurpation

Wrongful seizure of power

deposition · toppling · unseating · coup · regime change · power shift · ascendancy · taking over · removal from office

obsolescence

outdating

Making something seem old-fashioned

discontinuation · desuetude · abandonment · disuse · mothballing · sunset · expiration · redundancy · outmoding · end of life

Opposites
replacement vs. persistence

supersessioncontinuation

Act of proceeding further

continuance · perpetuation · retention · preservation · maintenance

displacement vs. restoration

supersessionreinstatement

Return to previous position

restoration · reestablishment · revival · reversion · return

displacement vs. retention

supersessionretention

Continued holding or possession

reinstatement · restoration · keeping · holding · entrenchment

Family

supersede, superlative, superseded, superseding

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Used worldwide · Timeless · Abstract · Rated G