Qaamch’ip’q'i (Ubykh)

An idiomatic term for someone whose good or kind outward appearance is deceptive

Inat (Serbian)

An attitude of proud defiance, stubbornness and self-preservation to the detriment of everyone else.

Nito-onna (Japanese)

A woman so dedicated to her career that she has no time to iron blouses and so dresses only in knitted tops.

Chantepleurer (French)

Singing and crying at the same time.

Cotisuelto (Caribbean Spanish)

A man who wears his shirt tail outside of the trousers.

Queesting (Dutch)

To allow a lover access to one’s bed for chitchat.

Kalpa (Sanskrit)

The passing of time on a grand, cosmological scale.

Weltschmerz (German)

Similar to world-weariness, but particularly applied to privileged young people.

Ikigai (Japanese)

A “reason for being.” On the island of Okinawa, it is thought of as “a reason to get up in the morning,” 

Donaldkacsázás (Hungarian)

Literally means “Donald Duck-ing”. Wearing a shirt but no pants nor underpants at home

Pochemuchka (почемучка- Russian): A person who asks a lot of questions 

Zhaghzhagh (Persian)

The chattering of teeth from either cold or rage.

rimijhim (Hindi): a light, tapping sound produced by the series of raindrops rapidly falling and hitting onto a surface.

Iktsuarpok (Inuit): The feeling of anticipation that leads you to keep looking outside to see if anyone is coming.

Saudade (Portuguese): a deep, nostalgic and melancholic longing for something or someone, often accompanied with a denied fact that what one longs for will never come back. 

Goya (urdu) the transporting suspension of disbelief that can occur in good storytelling

Yaourter (French)

Literally “to yogurt”: attempting to speak or sing in a foreign language that one doesn’t know very well.  (personal current favourite of the CSIIEB)