Someone who doesn’t follow through on their commitments is often called unreliable or irresponsible. These terms describe individuals who fail to complete tasks, break promises, or neglect obligations—either consistently or in key moments.

Common Terms for People Who Don’t Follow Through
Depending on the situation and severity, different terms may be used to describe someone who doesn’t keep their word:
- Unreliable – Fails to deliver results or meet expectations.
- Irresponsible – Avoids accountability or neglects duties.
- Flaky – Informal term for someone who often cancels or forgets plans.
- Inconsistent – Someone whose actions and commitments are unpredictable.
- Untrustworthy – Cannot be relied upon to act honestly or dependably.
How This Behavior Affects Relationships and Work
Failing to follow through can damage trust, hinder progress, and reduce overall morale in both personal and professional relationships. Some key effects include:
- Missed deadlines and project delays
- Increased workload on others
- Frustration and resentment from peers or partners
- Damaged reputation over time
Examples in Different Contexts
| Context | Term Often Used | Example |
|---|---|---|
| Workplace | Unreliable | Fails to meet deadlines or attend scheduled meetings |
| Friendship | Flaky | Constantly cancels plans last-minute |
| Parenting | Irresponsible | Neglects basic parental responsibilities |
| Team Projects | Inconsistent | Sometimes delivers, sometimes vanishes |
How to Handle Someone Who Doesn’t Follow Through
- Set clear expectations and deadlines
- Document responsibilities and commitments
- Offer support, but hold them accountable
- Consider boundaries if the behavior is chronic
Conclusion
Someone who doesn’t follow through can be called unreliable, flaky, or irresponsible, depending on the context and relationship. Recognizing these patterns is important for protecting your time, trust, and overall productivity.
FAQ
What’s the most polite way to describe someone who doesn’t follow through?
You might say they are “inconsistent” or “struggling with follow-through,” which acknowledges the behavior without sounding accusatory.
Is being unreliable the same as being untrustworthy?
Not exactly. Someone can be unreliable due to poor time management, while untrustworthy implies intentional deception or betrayal.
Can people improve their follow-through?
Yes, with better time management, goal-setting, accountability systems, and support, many individuals can improve their consistency.

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