tapered (adj.)

• acanthoid
• acanthous
• acicular
• acuate
• aculeate
• acuminate
• acute
• barbed
• cone-shaped
• cusped
• cuspidate
• hispid
• horned
• horny
• pointed
• pronged
• sharp-pointed
• spiked
• spiky
• spinous
• spiny
• tapering
• tined
• toothed