Self-evident, intuitively obvious.
Presumed without analysis.
Based on hypothesis and theory rather than experiment or empirical evidence.
Developed entirely from scratch, without deriving it from existing languages.
In a way based on theoretical deduction rather than empirical observation.
Capable of being perceived very clearly.
Separate in place; not conjunct or united; with from.
Different from one another (with the preferable adposition being "from").
Noticeably different from others; distinctive.