Synonyms: obstructer, obstruction, obstructor, impediment, impedimenta
Definition: any structure that makes progress difficult
Similar words: structure, construction
Definition: a thing constructed; a complex entity constructed of many parts
Usage: the structure consisted of a series of arches; she wore her hair in an amazing construction of whirls and ribbons
Synonyms: check, balk, baulk, impediment, hinderance, hindrance, handicap, deterrent
Definition: something immaterial that interferes with or delays action or progress
Similar words: difficulty
Definition: a factor causing trouble in achieving a positive result or tending to produce a negative result
Usage: serious difficulties were encountered in obtaining a pure reagent