IPA: /ˌkɒmənˈsɛnsɪkəl/
KK: /ˈkɑːmənˌsɛnsɪkəl/
Showing good judgment and practical thinking that most people would agree with.
It was a commonsensical decision to wear a coat on a cold day.
Commonsensical → It is formed from "common" (from Old French *comun*, meaning shared by all) and "sensical" (from "sense" which comes from Latin *sensus*, meaning perception or feeling, combined with the suffix "-ical" meaning pertaining to). The word "commonsensical" refers to something that pertains to shared perception or practical judgment that is generally accepted by people.
Think of something that is 'shared by all' ('common') and relates to 'perception' ('sensus') — that's why commonsensical means something that is based on common sense.