................... behaviour seems silly in an adult because it is typical of a child (infantylny)

the degree to which something or someone has the right qualities for a particular purpose (stosowność, odpowiedniość, nadawanie się)

clearly expressed in a few words – use this to show approval (zwięzły, lakoniczny, treściwy)

two statements, beliefs, etc., that are ......................., are different and therefore cannot both be true or correct (sprzeczny)

the skill or work of a carpenter (stolarstwo)

unwilling to talk about what you feel or what you know  (małomówność, powściągliwość)

an activity that a lot of people are doing (platforma dla orkiestry)

they are the people who are the same age as you, or who have the same type of job, social class, etc. (rówieśnicy)

used to say that a situation has changed to the opposite of what it was before (Sytuacja się zminiła)

to correct something that is wrong or unfair (naprawić (sytuację))

used to say that someone is no longer young – used humorously (młodzieniaszek, małolat)

tending to disagree with what other people tell you (sceptyczny)

someone whose job is to help other people be successful in their lives by making them clear about what they want to do in the future (terapeuta)