barrier; obstruction; hindrance; impediment; obstacle

to obstruct; to hinder; to block; obstruction; hindrance

to hinder; to obstruct; to block

(usually used in the negative) major issue; serious problem; big deal

worry

without inconvenience; unimpeded; unhindered; unobstructed; unfettered; unhampered

to hinder; to impede; to be detrimental

(literary) to be obstructed

taboo; prohibition

barrier-free; (esp.) accessible (to people with a disability)

water hazard (golf)

bipolar disorder

cultural barrier

intellectual disability; cognitive disability; learning disability; mental retardation

language barrier; speech impediment

disability

dyslexia

erectile dysfunction (ED)

gender identity disorder (GID); gender dysphoria

gender identity disorder

schizoaffective disorder

post-traumatic stress disorder; PTSD

borderline personality disorder (BPD)