outside

/ˌˈaʊtˌˈsaɪd/

/aʊtˈsaɪd/

Other forms: outsides

The outside of something is the part that's visible to the world. A neighbor who's used to the tidy outside of your house might be shocked by the mess inside.

Your perfect chocolate chip cookies might be crunchy on the outside, but soft inside, and when your friends eat them, they'll look as happy on the outside as they feel inside. Outside is also an adjective, for talking about the outside temperature or your outside lights that automatically turn on at dusk. If you're on the outside of some group, you don't feel like you belong, and if someone talks about "an outside chance," they mean a very unlikely possibility.

Definitions of outside

1. noun

   the region that is outside of something
   synonyms: exterior

   antonyms:

   inside

   the region that is inside of something

   types:

   open, open air, out-of-doors, outdoors

   where the air is unconfined

   type of:

   part, region

   the extended spatial location of something
2. adjective

   originating or belonging beyond some bounds:"the outside world"
   “outside interests”

   “an outside job”

   synonyms:

   external

   happening or arising or located outside or beyond some limits or especially surface
3. adjective

   functioning outside the boundaries or precincts of an organized unit
   synonyms:

   extramural

   carried on outside the bounds of an institution or community
4. adjective

   from or between other countries
   “developing nations need outside help”

   synonyms: external, international

   foreign

   of concern to or concerning the affairs of other nations (other than your own)
5. adjective

   coming from the outside
   “disdaining outside pressure groups”

   synonyms: external, extraneous

   extrinsic

   not forming an essential part of a thing or arising or originating from the outside
6. adjective

   leading to or from the outside
   “an outside door”

   synonyms:

   exterior

   situated in or suitable for the outdoors or outside of a building
7. adjective

   located, suited for, or taking place in the open air
   synonyms: out-of-door, outdoor

   exterior

   situated in or suitable for the outdoors or outside of a building

   alfresco, open-air

   in the open air

   outdoorsy

   characteristic of or suitable to outdoor life
8. adverb

   outside a building
   “in summer we play outside”

   synonyms: alfresco, out of doors, outdoors

   antonyms:

   inside

   within a building
9. noun

   the outer side or surface of something
   synonyms: exterior

   antonyms:

   inside

   the inner or enclosed surface of something

   type of:

   surface

   the extended two-dimensional outer boundary of a three-dimensional object
10. adjective

    relating to or being on or near the outer side or limit
    “an outside margin”

    synonyms:

    external

    happening or arising or located outside or beyond some limits or especially surface

    after-school

    outside regular school hours

    extracurricular

    outside the regular duties of your job or profession

    extracurricular

    outside the regular academic curriculum

    right

    (of the side of cloth or clothing) facing or intended to face outward

    antonyms:

    inside

    relating to or being on the side closer to the center or within a defined space

    internal

    happening or arising or located within some limits or especially surface

    wrong

    used of the side of cloth or clothing intended to face inward
11. adjective

    on or toward an outer edge
    “the outside lane”

    synonyms:

    outer

    being on the outside or further from a center
12. adjective

    (of a baseball pitch) on the far side of home plate from the batter
    “an outside pitch”

    synonyms: away

    inaccurate

    not exact
13. adverb

    on the outside
    “outside, the box is black”

    antonyms:

    inside

    on the inside
14. adjective

    very unlikely
    “an outside chance”

    synonyms: remote

    unlikely

    has little chance of being the case or coming about