Synonyms of punctually

1 Syllable
sharp, fast, pdq, now
2 Syllables
promptly, flat-out, swiftly, quickly, duly, pronto, fleetly
3 Syllables
speedily, directly, rapidly, posthaste, straightaway, instantly, hastily
4 Syllables
lickety-split, regularly, religiously, unchangingly
5 Syllables
expeditiously
6 Syllables
unhesitatingly