นิสัย ไม่ ดี
“นิสัย ไม่ ดี” (нисай май ди) — bad habit in Thai. Noun, level B1. Literally "character not good": the habit serves for character and temperament alike. Badness the Thai measures honestly — "not good". In a live sentence: “มา ช้า เป็น นิสัย ไม่ ดี” — Being late is a bad habit. Written with the characters น, ิ, ส, ย, ไ, ม, ่, ด, ี. A word from the everyday Thai course, level B1.
In short
| Written in Thai | นิสัย ไม่ ดี |
| Read in Latin letters | нисай май ди |
| Translation | bad habit |
| Part of speech | noun |
| Level | B1 |
Why it looks that way
Literally "character not good": the habit serves for character and temperament alike. Badness the Thai measures honestly — "not good"
A word with a story stays in memory longer than one learned as a “spelling — translation” pair: memory holds on to meaning, not to a string.
In a live sentence
A single word almost never appears alone in conversation. A sentence shows where it fits and what stands next to it.
- มา ช้า เป็น นิสัย ไม่ ดีма чаа пен нисай май диBeing late is a bad habit
How not to forget this word
Reading a word and remembering it are different jobs. A day later, little survives of a single reading — and that is not bad memory, that is how memory works.
- This has been tested on foreign words too. The difference shows up most when you test yourself a few days later rather than straight away.checked many timesKim & Webb, 2022, Language Learning 72(2) · 48 experiments, 3,411 participants, 98 comparisons.
- Recalling beats re-reading. Covering the translation and trying to remember it does more than reading it ten more times.checked many timesAdesope, Trevisan & Sundararajan, 2017, Review of Educational Research 87(3) · 188 experiments, 272 comparisons. g = 0.61; against plain re-reading 0.51, against passive review 0.93.
- An answer you worked out yourself sticks better than one handed to you.checked many timesBertsch et al., 2007, Memory & Cognition 35(2) · 86 studies, 445 comparisons, d = 0.40.
Frequently asked
How do you say “bad habit” in Thai?
«นิสัย ไม่ ดี», read “нисай май ди”. In a live sentence: “มา ช้า เป็น นิสัย ไม่ ดี” — Being late is a bad habit. Noun, level B1; written with the characters น, ิ, ส, ย, ไ, ม, ่, ด, ี.
How is “นิสัย ไม่ ดี” written in Latin letters?
нисай май ди. This is a practical spelling — you need it to read aloud and be understood, not to meet an academic standard.
Why does this word look the way it does?
Literally "character not good": the habit serves for character and temperament alike. Badness the Thai measures honestly — "not good". A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.