Harsh or unpleasant to the eye or ear; grating, discordant; aesthetically displeasing; (of writing or literary style) stiff, laboured. Also more…

Unpleasant to hear; discordant, harsh, unmusical.

Of things, in various transferred uses. Of sound: Harsh, menacing (cf. A. 5). Obsolete.

Of sound: discordant, grating; harsh and rasping.

Of music or musical notes: dissonant, lacking in harmony. More generally: (of sound): jarring or harsh to listen to; clashing.

With reference to intensity or force. Of sound: Strong, harsh. Obsolete.

Rough and deep-sounding, as the voice when affected with a cold, or the voice of a raven or frog… Of other sounds. (Chiefly poetic.)

Repugnant or unpleasant to other bodily senses. Disagreeably rough to the ear; jarring, discordant.

Probably: harsh, raucous.

Of sound, language, etc.: rough, harsh; rude, unpolished.

Disagreeing or discordant in sound, inharmonious; harsh-sounding, unmelodious, jarring.

Of harsh quality or character.

Abounding in jarring or jars.

Not melodious; unmelodious.

transferred and figurative. Rugged, rough.

Of a sound: harsh, discordant, rough.

Esp. of a sound: not of a musical nature; unmelodious, harsh.

Out of tune; unharmonious, dissonant.

Not sounding in harmony; unmelodious.

Not harmonical. †inharmonical relation, or relation inharmonical, in Music the same as false relation (obsolete).

(un-, prefix1 affix 1.)

Of sound: Not in harmony; sounding disagreeably; discordant, untuneful.

Of sound: Rough, harsh. rare.

Resembling or reminiscent of pebbles. Also of a surface: having a pebbled or indented appearance; bumpy, uneven.

Of a tone: high, thin, penetrating; of a voice, sound, or instrument: having such a tone.

Of, resembling, or characterized by the sound of iron when struck; (hence) harsh, unmusical. Cf. metallic, adj. 5c.

Of a sound: harsh, discordant, rasping.

Not harmonic; not in harmony; dissonant, inharmonious; not according to the principles of harmony.

Roughened; made harsh.

Of sounds: Rasping, harsh.

Sharp, piercing, keen. Of sound: Harsh. rare.

Rough, harsh, or rude, to the taste, perception, or æsthetic sense. (In early use coming near to 1.) Of sound: Rough and harsh; spec. in Pathology…

Of music or noise: cacophonous, discordant, noisy.

= dissonant, adj.; employing or characterized by dissonance.

Of sound, esp. music: extremely loud; grating, dissonant; (also) complicated, challenging.

figurative. Chiefly attributive or as adj., rough, abrasive, aggressive.