transience

From transient +‎ -ence.

transience (countable and uncountable, plural transiences)

1. The quality of being transient, temporary, brief or fleeting.
2. An impermanence that suggests the inevitability of ending or dying.

• (quality of being transient): temporariness, impermanence, transiency, transientness; see also Thesaurus:transience

• chronicity
• inveteracy
• permanence

• transient
• transiently

• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “transience”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
• “transience”, in OneLook Dictionary Search.

• inertances, nectarines