-ious — full of, having the quality of (affix)

delicious A1

/dɪˈlɪʃ.əs/ Tasting very good. M S

mysterious A2

/mɪˈstɪɹi.əs/ Difficult to understand or explain; strange and puzzling. M S

anxious A2

/ˈæŋ(k).ʃəs/ Feeling worried or nervous about something that might happen. M S

ambitious B1

/æmˈbɪʃ.əs/ Having a strong desire to be successful, powerful, or rich. M S

cautious B1

/ˈkɔːʃəs/ Careful to avoid danger, risk, or mistakes. M S