unmistakable
adj.very easy to recognize because it is unique or clear. You use this when there is no doubt about what something is.
adj.impossible to mistake for anything else; clearly distinctive and easily identified. Often used to describe sensory qualities like sounds, smells, or visual styles.
“The smell of fresh coffee is unmistakable.”
“Even from a distance, her unmistakable laugh echoed through the crowded hallway.”
“The artist's latest work bears his unmistakable signature style, characterized by bold geometric shapes and a muted, earthy color palette.”
Typically used as a predicative adjective after linking verbs or as an attributive adjective before the noun it modifies.
“There’s a thrum of excitement in the air as an eight-minute countdown starts and Ariana Grande’s unmistakable silhouette appears on a giant backlit curtain on the stage of the O2.”
“And if nothing else, it was a case of game recognizing game: one unmistakable American original saluting another.”
From un- + mistake + -able.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.