| Word | Definitions | Synonyms |
|---|---|---|
| biennially | (adverb) every two years | Synonyms: biyearly |
| centennially | (adverb) every hundred years; once in a century | - |
| ceremonially | (adverb) in a ceremonial manner | Synonyms: ritually |
| (adverb) in a ceremonious manner | Synonyms: ceremoniously | |
| congenially | (adverb) in a congenial manner | - |
| genially | (adverb) in an affable manner | Synonyms: affably, amiably |
| menially | (adverb) in a menial manner | - |
| perennially | (adverb) in a perennial manner; repeatedly | - |