acerbic
2.Among those in the audience was expected to be Iranian President Mahmoud Ahmadinejad, an acerbic critic of U.S. foreign policy who has previously challenged Bush to a debate.
3.Bigfoot, on the other hand, while occasionally eliciting an acerbic snicker, enjoys greater plausibility for a simple evolutionary reason: large hirsute apes currently roam the forests of Africa, and at least one species of a giant ape—Gigantopithecus—flourished some hundreds of thousands of years ago alongside our ancestors.
