[in a flash] also [in a trice] {adv. phr.} Very suddenly. […]

[in a flutter] {adv. phr.}, {informal} In a state of nervous […]

[in a fog] or [in a haze] {adv. phr.} Mentally confused; […]

[in a good frame of mind] {adv. phr.} In a happy […]

[in a heartbeat] {adv. phr.} Almost immediately. * /If I had […]

[in a huff] {adv. phr.}, {informal} Angrily. * /Ellen went off […]

[in a jam] {adv. phr.}, {informal} In a predicament; in a […]

[in a jiffy] {adv. phr.}, {informal} Immediately; right away; in a […]

[in a nutshell] {adv. phr.}, {informal} In a few words; briefly, […]

[in a pickle] {adv. phr.}, {informal} In a quandary; in a […]