Origin: Latin suffix -able
Unavoidable has 3 different meanings across 1 category:
Something that cannot be avoided.
"The heavy rain made our delay an unavoidable part of the morning commute."
impossible to avoid or evade
"inescapable conclusion"
"an ineluctable destiny"
"an unavoidable accident"
Impossible to avoid; bound to happen.
"The rain was unavoidable, so we had to cancel our picnic plans."