Before you consider if this Ground of Divorce applies to you, you have to make sure you can divorce in Singapore as there are conditions to be met before you can do so. Find out:  Can I Divorce in Singapore?

What is Unreasonable Behaviour and what is not?

Unreasonable Behaviour is the most commonly used Ground of Divorce in Singapore. It has a very wide meaning, and normally used when the other Grounds of Divorce do not apply.

Unreasonable Behaviour may include action or inaction, active or passive, and a variety of situations including but not limited to the following:

  • Violence
  • Constant late nights
  • Drug addiction
  • Compulsive gambling habits
  • Deprivation of sex
  • Working too many hours

It is not just incompatibility between the couple. The question is whether one party can be reasonably expected to live with the other party’s behaviour in question. There is definitely some subjectivity on what is reasonable or not. So there is no fixed formula. Some objective criteria are also considered, for example, the cumulative effect of the behaviour in question.

Just for your general information and understanding, you may like to try our Unreasonableness Calculator (coming up soon) which tries to estimate, both subjectively and objectively if certain behaviour could be considered unreasonable. Note that this is purely an estimate for your reference only and not meant for you to rely on in any way. It is not accurate and does not help to determine the merits of your case. You may wish to consult an experienced lawyer to get a professional opinion based on the specific facts of your case and professional experience.

Other helps and resources available

Helps and resources are available for specific situations or problems. Below is a list of help currently available and provided by specific organizations that you may want to get in touch with:

  • AWARE (Association of Women for Action & Research

Address: 5 Dover Crescent, #01-22, Singapore 130005

Telephone: 1800-777-5555 (3pm – 9.30 pm, Mondays to Fridays) to fix an appointment



  • Child Protection and Welfare Helpline

Address: 10th Storey MCYS Building, 512 Thomson Road, Singapore 298136

Telephone: 1800-777 0000 (Monday to Friday, 8.30am-5pm and Saturday, 8.30am-1pm)

  • SAFE Programme (Stop Abuse in Families)

Address: Blk 411 Bedok North Avenue 2,

#01-106, Singapore 460411

Telephone: 6449 0762



  • Family Service Centres

There are 35 FSCs in Singapore. Call ComCare at 1800 222 0000 to connect to reach the nearest FSC.

Commence divorce proceedings

If you have checked that you can divorce in Singapore, believe you have a reason based on Unreasonable Behaviour as a Ground of Divorce, and have decided to commence divorce proceedings, you may want to find out how and whether you should DIY or engage a lawyer here: Do I need a lawyer for my Divorce? You may also wish to consult a lawyer directly to obtain professional advice on your case.

Muslim Law

If you are married under Muslim law, the above may not apply to you. You can find out more about Divorce under Muslim Law (coming up soon).

Do you find this article useful? Share your thoughts with us!

Found this article helpful? You might also be interested in the other articles in this category Divorce Information:

Considerations over Divorce

Divorce Forms & Papers for Dummies

Ancillary Matters, What Are They?


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