Choose the word that is opposite in meaning to the word “coherent”.

Answer: rambling

Key idea: "Coherent" means clear, logical, and well-organized. The opposite should describe something lacking clarity or logical order.

• sticky — describes something adhesive or persistent; not about clarity or organization.

• well-connected — aligns with the meaning of coherent (logical or connected), so it is not an opposite.

• rambling — means disorganized or long-winded, lacking clear structure; this is the opposite of coherent.

• friendly — refers to being kind or pleasant, which is unrelated to clarity or logical order.

Therefore, "rambling" is the best antonym because it denotes a lack of coherent structure and clarity.