| verb | soften, make mellow “Age and experience mellowed him over the years” |
| verb | become more relaxed, easygoing, or genial “With age, he mellowed” |
| verb | make or grow (more) mellow “These apples need to mellow a bit more” |
| adjective | unhurried and relaxed “a mellow conversation” |
| adjective | having a full and pleasing flavor through proper aging “a mellow port” |
| adjective | having attained to kindliness or gentleness through age and experience “mellow wisdom” |
| adjective | having attained to kindliness or gentleness through age and experience “mellow wisdom” |
| adjective | slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana) |
| adverb | (obsolete) in a mellow manner |
| mellowing | noun | the process of becoming mellow |
| mellowness | noun | geniality, as through the effects of alcohol or marijuana |
| high | noun | a state of altered consciousness induced by alcohol or narcotics |