1. (adjective) not pertinent to the matter under consideration

• immaterial
• impertinent
• orthogonal

2. (adjective) not belonging to that in which it is contained; introduced from an outside source

• foreign

3. (adjective) coming from the outside

• external
• outside

1. (adjective) not pertinent to the matter under consideration

• irrelevant

2. (adjective) not essential

• extrinsic

3. (adjective) not belonging to that in which it is contained; introduced from an outside source

• adulterant
• adulterating

4. (adjective) coming from the outside

• extrinsic

1. (adjective) not pertinent to the matter under consideration

• extraneousness
• immateriality

2. (adjective) not essential

• extraneousness

3. (adjective) not belonging to that in which it is contained; introduced from an outside source

• extraneousness

4. (adjective) coming from the outside

• externality
• outwardness
• extraneousness