Stiff
inflexible / rigid / unyielding / fixed / stubborn
There are many more depends who or what you are talking about.
The word that means lacking flexibility is "rigid."
The word is "inexperienced."
The root word for devoid is "void," which means empty or lacking something. In the case of "devoid," it means completely lacking or missing something.
The word "colorless" includes a suffix ("-less") that means lacking or without.
The root word "xero" means dry or lacking water.
The prefix in non-. This prefix means not.
Untrustworthy
The word is narrowness. It means not wide.
an- means not, without, or lacking. esthesia means capacity for sensation or feeling; sensitivity.anestesia means without/lacking feeling or sensation.
one word meaning lacking detail depending on the context of its use would be "spacey." as in "that explanation was kinda spacey." ~VAGUE is a good word meaning "Lacking Detail"~
nothing
..Empty? Bare? Lacking?..
static
Atonal
hollow
The word oblivious is an adjective. It means to be lacking awareness.
The correct spelling is "defecate." It means to discharge feces from the body.
A good word would be ignorant. It means lacking knowledge about something.