| intrinsic(adjective, important, significant, original, essential) |
| meat and potatoes(expression, adjective, idiom, simple, plain) |
| nitty-gritty(adjective, original, basic, absolute, fundamental) |
| nub(adjective, original, basic, absolute, fundamental) |
| vital(adjective, body, material, important, significant) |
| absolute(adjective, basic, fundamental, central) |
| cold(adjective, basic, absolute, fundamental) |
| complete(adjective, basic, absolute, fundamental) |
| congenital(adjective, basic, absolute, fundamental) |
| connate(adjective, basic, absolute, fundamental) |
| critical(adjective, original, essential, basic, fundamental) |
| ideal(adjective, basic, absolute, fundamental) |
| inborn(adjective, basic, absolute, fundamental) |
| inbred(adjective, basic, absolute, fundamental) |
| name of game(expression, idiom, absolute, constitutional) |
| name of the game(expression, adjective, idiom, basic, absolute) |
| perfect(adjective, basic, absolute, fundamental) |