Answer:

dateless

AnswerCrossword Clue
DATELESSStag
DATELESSAlone on Saturday night, say
DATELESSWithout company
DATELESSBy oneself, as at a dance
DATELESSGoing stag
DATELESSHaving no set time.
DATELESSEnduring.
DATELESSLasting.
DATELESSAlone on Saturday night.
DATELESSImmemorial.
DATELESSLike a wallflower.
DATELESSSine die
DATELESSAlone
DATELESSLike men at stag parties
DATELESSHaving no social engagement
DATELESSLike a wallflower
DATELESSAlone on a Saturday night