humourless
Lacking all mirth
Humourless describes someone who lacks the ability to appreciate or express humour—serious to a fault, unable to laugh at themselves or find amusement in situations others find funny.
A humourless response takes literally what was meant as a joke.
Her humourless boss made meetings unbearable.
The American spelling is humorless.
Severely simple and unadorned
- severeExtremely harsh or strict
- strictRigorous, without flexibility
- grimHarsh and foreboding
- unyieldingRefusing to give way
inflexible · rigid · unsmiling · forbidding · stony · unbending · harsh · formidable
Serious and dignified
- graveSerious and worrying
- earnestSincerely intense in purpose
- somberGravely serious in mood
- soberFree from intoxication
intense · weighty · studious · businesslike · po-faced · straight-laced · preachy · self-important
Failing to engage interest
- tediousBoring through length
- drearyDull and depressing
- lifelessDevoid of animation
- flatLacking vertical variation
dry · colorless · bland · wooden · leaden · monotonous · uninspired · stale
Not showing amusement
- stony-facedShowing no emotion
- impassiveWithout visible emotion
- unmovedNot stirred physically/emotionally
- unimpressedFailing to find remarkable
poker-faced · straight-faced · blank · expressionless · cold · frosty · glacial · stonewalling
austere
Severely simple and unadorned
unyielding · inflexible · rigid · unsmiling · forbidding · stony · unbending · harsh · formidable · dour
solemn
Serious and dignified
sober · intense · weighty · studious · businesslike · po-faced · straight-laced · preachy · self-important · pompous
boring
Failing to engage interest
flat · dry · colorless · bland · wooden · leaden · monotonous · uninspired · stale · deadpan
unsmiling
Not showing amusement
- stony-facedShowing no emotion
- impassiveWithout visible emotion
- unmovedNot stirred physically/emotionally
unimpressed · poker-faced · straight-faced · blank · expressionless · cold · frosty · glacial · stonewalling · unenthused