utter

About 6.51 uses per million words.

Meaning

adjective To the furthest or most extreme extent; absolute, complete, total, unconditional. .mw-parser-output .defdate{font-size:smaller}
utter bliss utter darkness utter ruin
adjective Of a substance: pure, unmixed.
adjective Of decisions, replies, etc.: made in an unconditional or unqualified manner; decisive, definite.
adjective Further out than another thing; being the exterior or outer part of something; outer, outward; also, extremely remote.
at the utter extremities of
adjective Further out than another thing; being the exterior or outer part of something; outer, outward; also, extremely remote.
at the utter extremities of
adjective Preceding all others; original.
adjective Succeeding all others; final, last, ultimate.
noun The thing which is most utter (adjective sense) or extreme.