Adjectives

(s)stodgyheavy and starchy and hard to digest“stodgy food”, “a stodgy pudding served up when everyone was already full”
(s)fogyish, moss-grown, mossy, stick-in-the-mud, stodgy(used pejoratively) out of fashion; old fashioned“moss-grown ideas about family life”
(s)stodgy, stuffyexcessively conventional and unimaginative and hence dull“why is the middle class so stodgy, so utterly without a sense of humor?”, “a stodgy dinner party”