WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. cardinal, central, fundamental, key, primal, important (vs. unimportant), of import
- usage: serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"
- 2. aboriginal, primal, primeval, primaeval, primordial, early (vs. middle) (vs. late)
- usage: having existed from the beginning; in an earliest or original stage or state; "aboriginal forests"; "primal eras before the appearance of life on earth"; "the forest primeval"; "primordial matter"; "primordial forms of life"
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See also: primal (Dictionary)