Slender or narrow; -- said of type the letters of which have thin lines, or are unusually narrow in proportion to their height.(adjective)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "lean-faced" in a sentence
"A solemn, lean-faced man in his fifties stood with his arms crossed, staring at the substation."
"He alone had no war-bonnet or feathers, or anything but a coloured shirt; he was young and wiry, lean-faced and lank-haired and without paint-but with those eyes he didn't need any."
"Men on cycles, lean-faced, unkempt, scorched along every country lane shouting of unhoped deliverance, shouting to gaunt, staring figures of despair."