Flakey

American Slang

Definition

Unreliable and inconsistent; prone to forgetting, canceling, or not following through, often seeming scatterbrained or spacey.

Examples

"He's so flakey—he bailed on brunch again after texting five minutes before."

"Don't be flakey; if you say you're coming to the study group, actually show up."

"My flakey coworker keeps forgetting deadlines and leaving me to pick up the slack."