very thin, as thin as a hair
A fishing line made from hair.
The line along one's forehead where hair starts growing.
A very thin line in writing, drawing, or typography.
A very thin fissure.
Small and weak.
Consisting of weeds.
Characteristic of a plant that grows rapidly and spreads invasively, and which grows opportunistically in cracks of sidewalks and disturbed areas.
Abounding with weeds.
Of, relating to or resembling weeds.
Lacking power or effectiveness.