Abrupt decisions are often wrong.

Answer: Option A

Abrupt : sudden and unexpected.
Gradual : taking place or progressing slowly or by degrees.
Rough : having an uneven or irregular surface; not smooth or level.
Sharp : (of an object) having an edge or point that is able to cut or pierce something.
Hurried : done in a hurry; rushed.

Antonym of Abrupt is Gradual