unforthcomingadj.
/ˌʌnfɔːθˈkʌmɪŋ/, U.S. /ˌənˌfɔrθˈkəmɪŋ/ Of a person: reluctant to speak or respond; esp. unwilling to divulge information; (of a thing) not made ready or available when needed.
ΚΠ
1920 ‘O. Douglas’ Penny Plain xiv. 141 He might be so shy and unforthcoming that he would put people off.
1934 R. A. Knox Still Dead xii. 152 He was certainly a very repressed, unforthcoming sort of boy.
1966 I. Jefferies House-surgeon i. 13 Smiling uncomfortably and looking round for unforthcoming support from Grant.
1981 ‘E. Lathen’ Going for Gold xvi. 183 They were guarding a secret... It tells us why Miss Deladier..was so unforthcoming when we spoke to her.
This entry has been updated (OED Third Edition, June 2018; most recently modified version published online March 2022).
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adj.1920