Simple Definition of wasteful
: using more of something than is needed : causing something valuable to be wasted
Examples of wasteful in a sentence
a wasteful use of natural resources
a careless and wasteful person
We must eliminate wasteful expenditures.
First Known Use of wasteful
WASTEFUL Defined for Kids
Definition of wasteful for Students
: spending or using in a careless or foolish way
Seen and Heard
What made you want to look up wasteful? Please tell us where you read or heard it (including the quote, if possible).