sufficient to (V) / insufficient to (V)
Describes whether something is sufficient or insufficient to carry out the action indicated by the verb, often in formal settings.
Examples
この証拠は説得力に足りない。
This evidence is insufficient in persuasiveness.
彼の経験は任務を遂行するにたる。
His experience is sufficient to carry out the mission.
その説明は納得にたるものではない。
That explanation is not sufficient to be convincing.
Quick check
彼の経験は任務を遂行するに___。