1. Not by design or artifice; unforced and impromptu
   - unstudied

See also: candid, unaffected

• yellow jacaranda
• yellow jack
• yellow jacket
• yellow jasmine
• yellow jessamine
• yellow journalism
• yellow lady's slipper
• yellow lady-slipper
• yellow light
• yellow locust
• yellow loosestrife
• yellow lupine
• yellow man
• yellow mariposa tulip
• yellow marrow
• yellow metal
• yellow milkwort
• yellow mombin
• yellow mombin tree
• yellow mountain saxifrage
• yellow nutgrass
• yellow oak
• yellow ocher
• yellow ochre
• yellow oleander