Adjective

• S: (adj) radical, basal (especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem) "basal placentation"; "radical leaves"
• S: (adj) elementary, elemental, primary, basal (of or being the essential or basic part) "an elementary need for love and nurturing"; "a basal reader"
• similar to
• derivationally related form
• antonym
• W: (adj) incidental [Indirect via basic] ((sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence) "incidental expenses"; "the road will bring other incidental advantages"; "extra duties incidental to the job"; "labor problems incidental to a rapid expansion"; "confusion incidental to a quick change"
• S: (adj) basal, base (serving as or forming a base) "the painter applied a base coat followed by two finishing coats"