U

indistinctly

adjective

not distinct; not clearly marked or defined: indistinct markings.
not clearly distinguishable or perceptible, as to the eye, ear, or mind: He heard an indistinct muttering.
not distinguishing clearly: After the accident he suffered from indistinct vision and faulty hearing.

adjective

incapable of being clearly distinguished, as by the eyes, ears, or mind; not distinct

adj.

c.1400 (implied in indistinctly “equally, alike”), from Latin indistinctus “not distinct, confused,” from in- “not, opposite of” (see in- (1)) + distinctus (see distinct). Related: Indistinctly; indistinctness.