The word "cobweblike" refers to something that resembles a cobweb, which is usually delicate, thin, and tangled. The opposite of this word can be "clean," "tidy," or "organized." A clean space is free of cobwebs or any other tangled mess. Another antonym of "cobweblike" could be "robust," "thick," or "dense." These words describe an object or material that is sturdy, strong, and not easily breakable. A cobweblike material, on the other hand, is weak and fragile. In conclusion, the antonyms of "cobweblike" portray qualities that are opposite to the characteristics of a cobweb - which is fragile, thin, and tangled.