INELUCTABLE

certain, inevitable

impossible to avoid or evade
"inescapable conclusion"
SYN - unavoidable
"An ineluctable destiny"

"He knew that these were the ineluctable consequences of his actions and he was ready to face them."

"It was the ineluctable change of employees that had really made his job miserable over the last few years."

"The economic downturn was ineluctable and people began to act accordingly - namely they stopped spending as much."