| capital(adjective, lead, head, master, boss) |
| chief(adjective, lead, head, master, boss) |
| clear(adjective, simple, pure, straightforward, basic) |
| constitutional(adjective, body, material, important, significant) |
| crucial(adjective, important, significant, original, essential) |
| easy(adjective, simple, straightforward, basic, uncomplicated) |
| embryonic(simple, basic, fundamental, elementary) |
| foundation |
| initial(adjective, simple, easy, straightforward, basic) |
| material(adjective, body, basic, absolute, fundamental) |
| plain(adjective, simple, pure, straightforward, basic) |
| stark(adjective, pure) |
| substratal(adjective, simple, plain, important, significant) |
| unadulterated(adjective, pure) |
| unalloyed(adjective, pure) |
| uncomplicated(simple, straightforward, basic) |
| ABCs(simple, straightforward, basic, uncomplicated) |
| ab ovo |
| abapical |
| amoebic(material, natural, basic, living, functional) |