IPA: /nɒn.æmˈbɪɡ.ju.əs/
KK: /nɑnˈæmbɪɡjuəs/
Clear and easy to understand, without any confusion or uncertainty.
The instructions were nonambiguous, making it easy for everyone to follow them.
Nonambiguous → It is formed from "non-" (meaning not) and "ambiguus" (from Latin, meaning uncertain or having multiple meanings). The word "nonambiguous" means not having multiple meanings or being clear and definite.
Think of 'not' ('non-') being added to 'uncertain' ('ambiguus') — this helps you remember that nonambiguous means something that is clear and definite.