sickly：释义

Prone to sickness.

Of, caused by, or associated with sickness: a sickly pallor.

Conducive to sickness: a sickly climate.

Causing nausea; nauseating.

Lacking vigor or strength; feeble or weak: a sickly handshake.

To make sickly: "Timidity . . . sicklies the whole cast of thought in action” ( Henry Adams).