English Reference
noun

exterior

n.
US /ɪkˈstɪɹiɝ/ UK /ɛkstˈiəɹɪɐ/ ex·te·ri·or UK spelling exterior's, exterior's

  1. 01 B2 Upper Intermediate

    the outside part or surface of something, especially a building.

    the outer surface or part of a physical structure or object.

    Simple

    The exterior of the house was painted a bright white to reflect the sun.

    In context

    The architect specified a weather-resistant stone for the exterior to ensure the building would withstand the harsh coastal climate.

  2. 02 C1 Advanced Formal

    the way a person looks or acts on the outside, which might be different from their real feelings.

    the outward appearance or manner of a person, often contrasted with their internal emotional state.

    Simple

    Behind his tough exterior, he was actually a very kind and gentle man.

    In context

    Despite her calm exterior, she was feeling incredibly nervous about the presentation she had to give to the board.

That microbes survived on the space station's exterior surprised scientists.

Phys.org· 19 Aug 2026

From Latin exterior.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin exterior
Level B2 · Upper Intermediate
Frequency Frequent
Updated