Source : WordNet®

low-level
     adj 1: not intense; "low-level radiation"
     2: lower in rank or importance [syn: {subordinate}] [ant: {dominant}]
     3: at a low level in rank or importance; "a low-level job";
        "low-level discussions"
     4: occurring at a relatively low altitude; "a low-level
        strafing run"