[ 'trɒglədʌɪt ]
■ noun
1》 a cave-dweller, especially a primitive or prehistoric one.
2》 a person who is deliberately ignorant or old-fashioned.
Derivatives
troglodytic -'dɪtɪk adjective
troglodytism noun
Origin
C15: via L. from Gk trōglodutēs , alt. of the name of an Ethiopian people, influenced by trōglē 'hole'.