What are kalakini letters, and which to avoid
Updated 2026-07-21
The word 'kalakini' means something that brings ruin or misfortune. In naming, kalakini letters are the group of consonants (and on some days vowels or tone marks) that fall in the 8th house of the Tāksā wheel for a given birth day.
A name containing these letters is believed to bring obstacles to its bearer, so it's the first thing Thai parents check before settling a first name — often before even weighing meaning or sound.
The full 8-day kalakini table
| Born on | Kalakini letters (avoid) |
|---|---|
| Sunday | ศ ษ ส ห ฬ ฮ |
| Monday | ะ า ิ ี ุ ู เ แ โ ใ ไ ฤ ฦ |
| Tuesday | ก ข ค ฆ ง |
| Wednesday (day) | จ ฉ ช ซ ฌ ญ |
| Wednesday (night) | บ ป ผ ฝ พ ฟ ภ ม |
| Thursday | ด ต ถ ท ธ น |
| Friday | ย ร ล ว |
| Saturday | ฎ ฏ ฐ ฑ ฒ ณ |
Why each day's kalakini differs
Because the Tāksā wheel rotates with the birth day, the same letter group lands in different houses on different days. A group that is Sunday's kalakini may be another day's auspicious house — which is why the same name can be lucky for one day yet unsuitable for another.
Worth knowing: schools differ
Thai naming manuals come from several schools, and some details — Monday especially — differ. This site follows the same rule set as the DekDuangDee app, consistent with most standard Thai references. We present it as cultural belief, not verified prediction.
Frequently asked questions
- Is even one kalakini letter in a name bad?
- By traditional belief, even one is considered best avoided — so checking that a name is fully 'kalakini-clear' is the standard most parents hold to.
- Does the surname need a kalakini check too?
- The tradition focuses on the first name. The surname is usually the family's and fixed, so the first name is where the check matters most.
- Where can I check a name for kalakini?
- Use the DekDuangDee app — type any Thai name and it tells you instantly which birth days it's kalakini-clear for.
Check a name you have in mind — free in the DekDuangDee app
Type any Thai name in the app for an instant kalakini, Tāksā, and numerology reading.