Insistent

1.

~ (about on upon something), ~ (that..) (insisting or demanding, continuing to demand attention or action, urgent, forcing itself on one's attention) ដែលរឹងរូស, ដែលទទូច, ដែលទាមទារ, ដែលរំខាន
Example: When Father was ill, the doctor was insistent that he should stay in bed at least 4 days.
Example: She's a most insistent person.

1.

Standing or resting on something; as, an insistent wall.

2.

Insisting; persistent; persevering.

1.

determined, obstinate, resolute, tenacious, unrelenting