Emotions & Heart
Japanese feeling words (Gitaigo) describe the movements of the heart as if they were physical sounds. This unique category is essential for understanding how Japanese speakers express their internal world.
Featured Words
びくびく
biku-bikuDescribes being in a nervous, frightened state, constantly fearing that something bad will happen.
ドキドキ
doki-dokiDescribes the sound or physical sensation of a fast-beating heart due to strong emotions like love, fear, or excitement.
イライラ
ira-iraDescribes the feeling of being prickly or vexed when things don't go as planned or when waiting too long.
もやもや
moya-moyaDescribes a hazy, unclear state of mind or a feeling of being unsatisfied or bothered without a clear reason.
にこにこ
niko-nikoDescribes a cheerful, friendly, and quiet smile that lasts for a while.
にやにや
niya-niyaDescribes a grin or smirk, often when someone is thinking of something funny or has a secret they aren't sharing.
ワクワク
waku-wakuDescribes a positive, bubbling feeling of looking forward to something pleasant.
ぞくぞく
zoku-zokuDescribes a physical chill running down the spine, whether from a cold/fever or from intense excitement/fear.
Nuance Comparisons
Doki-doki vs Waku-waku
Doki-doki is the physical thumping of the heart (often involving nervousness), while waku-waku is the internal bubbling of pure positive excitement.
Niko-niko vs Niya-niya
Niko-niko is a friendly, outward smile; Niya-niya is a private, inward grin (often a smirk).
Niya-niya vs Nita-nita
Niya-niya is a private, often mischievous grin; Nita-nita is an unpleasant, overtly creepy or indecent grin.
Zoku-zoku vs Biku-biku
Zoku-zoku is a physical chill (shivers); Biku-biku is a mental state of being jumpy/fearful.