27 entries under earliness topic. ×

37
at once(noun, expression, idiom, adverb, time)
32
instantaneously(adverb, first, directly, quickly, haste)
29
directly(noun, adjective, adverb, conjunction, time)
23
quickly(adverb, straight, now, rapidly, promptly)
21
speedily(adverb, freely, directly, quickly, easily)
19
forthwith(adverb, time, punctually, at once)
8
summarily(adverb, delay, first, now, directly)
7
apace(quickly, rapidly, haste, speedily)
7
straight
7
straightway
7
suddenly(adverb, directly, rapidly, instantly, promptly)
6
on the spot(expression, idiom, adverb, instantaneity)
6
shortly(adjective, adverb, quick, now, directly)
4
briefly(adjective, adverb, prompt, quick, timely)
2
at short notice(expression, idiom, haste)
2
extempore
2
if not sooner(expression, idiom)
2
incontinently
2
on the instant(expression, idiom)
1
almost immediately(expression, idiom)
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APASmart Define. (2016). immediately thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immediately/thesaurus/synonyms
ChicagoSmart Define. 2016. "immediately thesaurus" https://smartdefine.org/immediately/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, immediately thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immediately/thesaurus/synonyms>.
MLASmart Define. "immediately thesaurus" 24 February 2016. Web. 22 September 2026. <https://smartdefine.org/immediately/thesaurus/synonyms>