1) Apelike 2) Dumbly imitative 3) Fantastically silly 4) Following blindly 5) Foolishly affected 6) Foolishly imitative 7) Foolishly silly 8) Given to copying 9) Given to imitation 10) Given to servile imitation 11) Goonlike 12) Gorillalike 13) His pa is somehow simian 14) Imitative 15) Imitative in a silly way Found on https://www.crosswordclues.com/clue/apish
• (a.) Having the qualities of an ape; prone to imitate in a servile manner. Hence: Apelike; fantastically silly; foppish; affected; trifling. Found on http://thinkexist.com/dictionary/meaning/apish/
Ap'ish adjective Having the qualities of an ape; prone to imitate in a servile manner. Hence: Apelike; fantastically silly; foppish; affected; trifling. « The apish gallantry of a fantastic boy. Sir W. Scott. » Found on http://www.encyclo.co.uk/webster/A/102