expression, godan verb (-ru, irregular)
have a tendency to; be liable to; have a touch of
Used with a negative nuance, often implying an undesirable tendency. Follows a noun or verb phrase (e.g., ～のきらいがある, ～するきらいがある).
彼は物事を大げさに言うきらいがある。
He has a tendency to exaggerate things.
この計画は楽観的すぎるきらいがある。
This plan has a touch of being too optimistic.