-ful — full of, characterized by, having (affix)

beautiful A1

/ˈbju.tɪ.fəl/ Very pleasing to look at; attractive. M S

careful A2

/ˈkɛɹfəl/ Giving attention to what you do so you avoid danger, mistakes, or harm. M S

wonderful A1

/ˈwʌn.dɚ.fl̩/ Extremely good; making you feel very happy or pleased. M S

powerful A2

/ˈpaʊɚfl̩/ Having great power, strength, or effect. M S

useful A2

/ˈjusfl̩/ Helpful or able to be used for a practical purpose. M S

helpful A2

/ˈhɛlp.fl̩/ Giving help; useful. M S