What's the adjective for honorariums? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs honor and honour which may be used as adjectives within certain contexts.
“They are not honorous but onerous to the superscription, and nothing is more untruthful or absurd.”
“His office contains within it all the authority of all the other offices, whose duties are not so honorous as his.
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“Cease, then, your wanderings and return at once to Christ, and He will greet you with a word of welcome and cheer, and who knows but what He has some honorous commission awaiting you.”