Words to Describe resonators

How resonators often is described ("________ resonators")

• empty
• such
• closed
• supraglottic
• cut
• principal
• simple
• port
• wooden
• hollow
• spherical
• type
• called
• passive
• nasal
• parallel
• wavelength
• wave
• confocal
• sapphire
• electromagnetic
• tubular
• loop
• laser
• gap
• crystal
• coaxial
• shaped
• conventional
• suitable
• identical
• open
• appropriate
• cylindrical
• tunable
• active
• acoustic
• corresponding
• ceramic
• mechanical
• symmetric
• stable
• unstable
• optical
• shear
• thin
• linear
• dielectric
• double
• circular
• electrical
• line
• piezoelectric
• vocal
• helical
• coupled
• rectangular
• planar
• separate
• adjacent
• coplanar
• dimensional
• composite
• lumped
• typical
• conical
• independent
• nonlinear
• selective
• individual
• acoustical
• external
• multiple
• branch
• electric