Occasionally

sometimes but not often Occasionally, we see deer in the field. = We occasionally see deer in the field. Occasionally, things don’t go as planned. Cook on medium heat, stirring occasionally, for about 10 minutes. Very occasionally [=rarely], she will have a glass of wine.

Likely

[more likely; most likely] without much doubt : PROBABLY He’ll very likely be late. It will most likely rain tomorrow. [=it will probably rain tomorrow] “Will it rain tomorrow?” “Most likely.” She will more than likely not get the job. [=she will very probably not get the job]