Index of English words, starting with "un"

(1) - Undue (a.) Not agreeable to a rule or standard, or to duty; disproportioned; excessive; immoderate; inordinate; as, an undue attachment to forms; an undue rigor in the execution of law.
(2) - Undue (a.) Not right; not lawful or legal; improper; as, an undue proceeding.
(3) - Undue (a.) Not due; not yet owing; as, an undue debt, note, or bond.

(1) - Undulant (a.) Undulating.

(1) - Undulate (v. i.) To move in, or have, undulations or waves; to vibrate; to wave; as, undulating air.
(2) - Undulate (v. t.) To cause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate.
(3) - Undulate (a.) Same as Undulated.

(1) - Undulation (n.) A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration.
(2) - Undulation (n.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.
(3) - Undulation (n.) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
(4) - Undulation (n.) A wavy appearance or outline; waviness.
(5) - Undulation (n.) The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.

(1) - Undulationist (n.) One who advocates the undulatory theory of light.