tasteless

UK: /ˈteɪstləs/ US: /ˈteɪstlɪs/ ,(tāst′lis)

WordReference Random House Learner's Dictionary of American English © 2025

taste•less /ˈteɪstlɪs/   adj. 

1. having no taste;
   lacking a taste or flavor:
   Water should be tasteless.
2. lacking good taste;
   lacking a sense of what is proper, harmonious, fitting, etc.:
   tasteless jokes.
taste•less•ly, adv. 
taste•less•ness, n. 
[uncountable] tastelessness in clothes and manners.

WordReference Random House Unabridged Dictionary of American English © 2025

taste•less  (tāst′lis), adj. 

1. having no taste or flavor;
   insipid.
2. dull;
   uninteresting.
3. lacking in aesthetic quality or capacity;
   devoid of good taste:
   a houseful of tasteless furnishings; a tasteless director of stale, dreary films.
4. lacking in politeness, seemliness, tact, etc.;
   unmannerly;
   insensitive:
   a tasteless remark.
5. lacking the physical sense of taste.

• taste + -less 1585–95

taste′less•ly, adv. 
taste′less•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

tasteless / ˈteɪstlɪs/ adjective

1. lacking in flavour; insipid
2. lacking social or aesthetic taste

ˈtastelessly adverb

ˈtastelessness noun