Confluence n. The act or process of merging. A flowing together of two or more streams. “A fortunate confluence of factors led to his success.”

Formidable adj. Inspiring fear or respect through being impressively powerful, large, or capable. “A formidable opponent.”

Obfuscate v. Render obscure, unclear, or unintelligible. Bewilder (someone). “The eclipse will obfuscate the sun’s light.”

Trepidation n. A feeling of fear or agitation about something that may or may not actually happen. “He entered the cave with considerable trepidation.”

Egress n. The action of going out of or leaving a place. “The company’s egress procedures.”

Abrogate v. Repeal or do away with a law, right, or agreement. “To abrogate a law.”

Credulous; Credulity adj. A tendency to be too ready to believe that something is real or true. “A credulous rumor.”

Opprobrious [op·pro·bri·ous] adj. Disgraceful; shameful. “His actions were opprobrious.”

Sentient adj. Characterized by sensation and consciousness. Able to perceive or feel things: “Sentient life forms.”

Officious adj. Assertive of authority in an annoyingly domineering way, esp. with regard to petty or trivial matters. Intrusively enthusiastic in offering help or advice; interfering. “The officious man is widely disliked.”