irresponsible

Definitions

Not showing a proper sense of responsibility; unreliable or untrustworthy.

Done or characterized by a lack of care for consequences.

Examples

It was highly irresponsible of him to leave the front door unlocked while he was away on vacation.

The company faced severe criticism for its irresponsible handling of toxic waste disposal.

Leaving a young child unattended near a swimming pool is an incredibly irresponsible act.

Synonyms

reckless careless negligent unreliable thoughtless imprudent shiftless

Antonyms

responsible reliable dependable accountable conscientious prudent careful