Answer: inaflash

AnswerCrossword Clue
INAFLASHWithout delay
INAFLASHChop-chop
INAFLASHVery quickly
INAFLASHOn the double
INAFLASHPronto
INAFLASHLickety-split
INAFLASHRight away
INAFLASHInstantly
INAFLASHQuickly
INAFLASHVery shortly
INAFLASHSwiftly
INAFLASHImmediately