A secular state, as mentioned in option 1, refers to a state that does not have an official state religion. This means that the government of a secular state does not endorse or promote any particular religion. Instead, it ensures religious freedom and equality for its citizens, allowing them to practice and follow any religion they choose.

Option 2, which suggests that a secular state is irreligious, is incorrect. A secular state does not necessarily mean that it is devoid of religion or opposes religion.

Option 3, stating that a secular state is anti-religion, is also inaccurate. A secular state does not aim to undermine or criticize religion, but rather to protect individuals` rights to practice their own beliefs without interference from the government.

Option 4, indicating that a secular state takes into consideration the religious sentiments of the people, is partially correct. While a secular state respects and acknowledges the religious beliefs and practices of its citizens, it does not prioritize or favor any particular religion.