1. Like an owl.

2. Resembling an owl.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• goolish,
• eglish,
• elish,
• follish,
• folish,
• foulish,
• pollish,
• enlish,
• ablish,
• poilish,
• jewlish,
• obolish,
• omish,
• uwish,
• talish,
• iwish,
• orcish,
• coolish,
• helish,
• wlesh

The adjective form of the word "owlish" is "owl-like".

The plural form of the word "owlish" is "owlishes" or "owlish".

The singular form of the word "owlish" is "owl"