IPA: /nɒnˈtrɪviəl/
KK: /nɑnˈtrɪviəl/
Not simple or easy; significant or important in some way.
The solution to the problem was nontrivial and required advanced techniques.
Nontrivial → It is formed from "non-" (meaning not) and "trivial" (from Latin "trivialis", meaning belonging to the crossroads or common). The word "nontrivial" means not trivial or not commonplace, indicating something of significance or complexity.
Think of 'non-' meaning not, and 'trivial' referring to something common or insignificant. This helps you remember that 'nontrivial' describes something that is not just ordinary, but rather important or complex.