dull

adj. desafilado, romo, sin filo, sin punta; tonto, cerrado de mollera, rudo, tardo, torpe, zopenco; aburrido, apagado, árido intelectualmente, desabrido, monótono, poco animado, sin interés, tedioso

v. desafilar, despuntar, embotar, entorpecer, quitar la punta a; aliviar, mitigar; deslucir, deslustrar

v.- entorpecer | embotar | apagar | quitar el brillo | deslustrar | desafilar | mellar | quitar el filo - adj.- monótono | soso | sin brillo | sin nitidez | deslustrado | áspero | mellado | sin filo | romo | boto | obtuso | insípido | aburridor | poco interesante | torpe | embotado

adj. embotado, obtuso, torpe, lerdo, inservible, soñoliento, débil, triste, aburrido, apagado, empañadov. embotar, entorpecer, monótono, apagar, amortiguar, mitigar, ofuscar, ensombrecer, empañar

aburridísimo, mortalmente aburrido

Ex: These librarians are given Haykin upon the day of their arrival and are expected to read the entire dull document and use it as a guideline in establishing subject headings.
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*dull day = día aburrido

Ex: Then there are those children made to think themselves failures because of the hammer-blow terms like dull, backward, retarded, underprivileged, disadvantaged, handicapped, less able, slow, rejected, remedial, reluctant, disturbed.
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*dull-witted, the = torpes, los

Ex: Too much heat, like too much cold, dulls the mind.

(adj.) = soso, insípido, poco interesante, monótono, romo, aburrido
Ex: These librarians are given Haykin upon the day of their arrival and are expected to read the entire dull document and use it as a guideline in establishing subject headings.
----
* dull day = día aburrido

(adj.) = torpe
Ex: Then there are those children made to think themselves failures because of the hammer-blow terms like dull, backward, retarded, underprivileged, disadvantaged, handicapped, less able, slow, rejected, remedial, reluctant, disturbed.
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* dull-witted = memo, necio, estúpido, obtuso

(adj.) = sin brillo
Ex: Among the visual attributes found to be most useful were: absorption (soaks in, sits on top), luster (shiny, dull), flakiness (doesn't flake off, flakes off), and thickness (thin, thick).

(v.) = entorpecer, embotar
Ex: Too much heat, like too much cold, dulls the mind.