Someone or something that is bubbly is lively, enthusiastic, or, in the case of carbonated beverages, literally full of bubbles. There are many synonyms for bubbly, but while you would never call someone carbonated, you might refer to a particularly vivacious or irrepressible friend as effervescent. This ebullient adjective means having or giving off bubbles of gas, as well as showing enthusiasm, excitement, or liveliness. An effervescent person is someone for whom suppression is unlikely or impossible, but why would we want to stem their enthusiasm? Now that 2020 is almost over, be effervescent with joy!

When something decreases, it lessens or diminishes in size, quantity, strength, or power. Another way we can say "decrease" is with the verb wane. It may be most familiar from the lunar realm, as it describes how the size of the illuminated portion of the moon's surface decreases after a full moon. Beyond the moon's transition between phases (with its antonym wax), wane can apply to more intangible things like influence and attention. Energy and enthusiasm may wane as we approach the end of the year, and, not coincidentally, wane also means to draw to a close or to approach an end, as in: "the year 2020 wanes (finally)!"

Adapt and accommodate both mean to adjust or modify, or to make suitable to requirements or conditions. For instance, you might say you've adapted your behavior to a new country by learning the language and customs. You might also say you've accommodated yourself to your new country by learning the language and customs. The key difference between these verbs is that with this meaning, the direct object for adapt cannot be a person, while for accommodate, it can be a person as well as an inanimate object. Thus one cannot adapt other people, but one can accommodate them, adjusting oneself to do them a favor or meet their needs or wants in some way. Accommodate is also an elevated way for hotels or service providers to say they can host you or take care of you.