ไม่ได้ความ(mâi dâi kwaam)

Meanings

1AdjectiveB1

useless; incompetent

useless, incompetent, good-for-nothing; not meeting expectations or standards.

2AdjectiveB1

senseless; incoherent [of speech/writing]

not making sense; unclear or disorganized, especially of speech or writing.

Examples

He explained the way to his house, but I listened and it didn't make any sense.
3AdjectiveB1

fruitless; no useful result

giving no useful result or information; an effort or inquiry that produces nothing.