On the instant synonyms | adverbs

Synonyms for On the instant as an Adverb

• instantly
• immediately
• at once
• promptly
• on the spot
• forthwith
• pronto
• straight away
• in the same breath
• then and there
• in the twinkling of an eye
• in a fraction of a second
• posthaste
• quick as lightning
• in the bat of an eye