Precarious, delicate, risky, sensitive; of uncertain outcome (by analogy with a ship in shallow water).
To touch bottom lightly and without damage, as a vessel in motion.
To perform a touch-and-go landing.
Not clearly defined, grasped, or understood; indistinct; slight.
Not clearly felt or sensed; somewhat subconscious.
Lacking expression; vacant.
Not having a precise meaning.
Not thinking or expressing one’s thoughts clearly or precisely.
Not sharply outlined; hazy.
Not clearly expressed; stated in indefinite terms.
Wandering; vagrant; vagabond.
To make vague negative comments publicly; to make highly veiled complaints or insults.
To become vague or act in a vague manner.
An indefinite expanse.