na-adjective
comical; farcical
Describes something as having the qualities of a comedy or farce; often used for situations, behavior, or outcomes that are absurdly amusing.
彼の失敗は喜劇的だった。
His failure was comical.
その映画のラストシーンは喜劇的で、観客は大笑いした。
The final scene of the movie was farcical, and the audience burst out laughing.
滑稽 is a noun or adjectival noun meaning 'comical' or 'ludicrous', often with a nuance of absurdity or ridicule; 喜劇的 is more directly tied to the style of a comedy or farce.
Compound of 喜劇 (comedy) + 的 (-like, -ish).