wasteful
/ˈweɪstfəl/
Syllables waste·ful
Stress WASTE-ful
Phonics Breakdown
waste
/weɪst/
long a_e
ful
/fəl/
schwa
Meaning
using more of something than is necessary; not economical
Sound Reference
💡
waste=/weɪst/(waste) + ful=/fəl/(helpful)
Example
Leaving the lights on all night is wasteful.