standoffish

[ stand-aw-fish, -of-ish ]

/ ˈstændˈɔ fɪʃ, -ˈɒf ɪʃ /

somewhat aloof or reserved; cold and unfriendly.

Origin of standoffish

First recorded in 1855–60; standoff + -ish¹

stand·off·ish·ly, adverb stand·off·ish·ness, noun

A father whose son played soccer with Holmes recalls that the young man was “kind of a strange, standoffish kid,” he said.

Colorado Shooting Suspect James Holmes’s Life in Aurora |Christine Pelisek, Eliza Shapiro |July 23, 2012 |DAILY BEAST
Not that she was still what he would have called "standoffish" with him.

Winnie Childs |C. N. Williamson
But even at that I dont see why she should be so standoffish.

The Girl Scouts at Camp Comalong |Lillian Garis
Harvie, who was the only one of us left, said that Sir Arthur was as standoffish and superior as ever.

A House Party with the Tucker Twins |Nell Speed

I am sure I don't know what to think of the English students being "standoffish" with Americans.

Virginia |Ellen Glasgow
It did, but I persisted in my standoffish attitude on that particular point of contention.

In Jeopardy |Van Tassel Sutphen

standoffish

/ (ˌstændˈɒfɪʃ) /

reserved, haughty, or aloof

standoffishly, adverb standoffishness, noun