sillily
In goofy fashion
Sillily is the adverb form of silly, meaning in a silly or foolish manner: She giggled sillily at the joke.
The word is grammatically correct but awkward-sounding, so speakers often avoid it by restructuring: in a silly way, with a silly grin.
When it does appear, it usually describes lighthearted foolishness rather than serious stupidity.
Laughing in short bursts
- clowningPlayful comic behavior
- frolickingLighthearted energetic movement
- rompingPlaying with energetic movement
- prancingShowy high-stepping movement
capering · gamboling · skylarking · goofing · horsing around · clownishly · impishly · mischievously
In nonsensical manner
- idioticallyIn a foolish manner
- stupidlyIn a senseless manner
- nonsensicallyWithout making sense
- irrationallyWithout sound reasoning
senselessly · witlessly · brainlessly · mindlessly · doltishly · fatuously · inanely · preposterously
Prone to tittering
- lightheadedlyIn a dizzy manner
- dizzilyIn a lightheaded manner
- flightilyIn a capricious manner
- scatterbrainedLacking mental focus
ditzy · fluttery · twitterpated · breathlessly · excitedly · hysterically · uncontrollably · deliriously
In an undeveloped manner
- babyishlyIn an immature manner
- naivelyWithout experience or cynicism
- innocentlyWithout intent to harm
- unsophisticatedlyWithout worldly experience
giggling
Laughing in short bursts
- clowningPlayful comic behavior
- frolickingLighthearted energetic movement
- rompingPlaying with energetic movement
prancing · capering · gamboling · skylarking · goofing · horsing around · clownishly · impishly · mischievously · jokingly
absurdly
In nonsensical manner
- idioticallyIn a foolish manner
- stupidlyIn a senseless manner
- nonsensicallyWithout making sense
irrationally · senselessly · witlessly · brainlessly · mindlessly · doltishly · fatuously · inanely · preposterously · ridiculously
giggly
Prone to tittering
- lightheadedlyIn a dizzy manner
- dizzilyIn a lightheaded manner
- flightilyIn a capricious manner
scatterbrained · ditzy · fluttery · twitterpated · breathlessly · excitedly · hysterically · uncontrollably · deliriously · euphorically
immaturely
In an undeveloped manner
- babyishlyIn an immature manner
- naivelyWithout experience or cynicism
- innocentlyWithout intent to harm
sillilywisely
With good judgment
sensibly · intelligently · thoughtfully · prudently · reasonably