Adult male and Father-figure

Adult male noun - An adult person who is male (as opposed to a woman).

Father-figure and adult male are semantically related. In some cases you can replace phrase "Father-figure" with "Adult male", this phrases are similar.

Father-figure noun - A man (often a powerful or influential man) who arouses emotions usually felt for your real father and with whom you identify psychologically.

Adult male and father-figure are semantically related. You can use "Adult male" instead a noun phrase "Father-figure".