more often than not
adverb
- adverb (idiomatic) Usually; more than half the time; more likely to be the case than not to be the case. “More often than not, tomato seeds will sprout even if they are a couple of years old.”
Synonyms
most of the time commonly frequently usually as a rule conventionally customarily in general generally habitually nine times out of ten normally oftest ordinarily predominantly principally typically by and large mostly
Etymology
Origin obscure. Semantically equivalent to, and often understood as, an ellipsis of more often than not so. Possibly sometimes understood as more often than zero (see nought and naught), especially in reference to scales or gauges where mark zero represents the midpoint of measurement or frequency.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “more often than not”, CC BY-SA 4.0. Details