unaesthetic

[uhn-es-thet-ik or, esp. British, -ees-]
adjective
  1. offensive to the aesthetic sense; lacking in beauty or sensory appeal; unpleasant, as an object, design, arrangement, etc.: an unaesthetic combination of colors.
Also unesthetic, un·aes·thet·i·cal.

Origin of unaesthetic

First recorded in 1825–35; un-1 + aesthetic
Related formsun·aes·thet·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018